Convert EPUB to PDF using Cloud SDK – Aspose.HTML

Aspose.HTML Cloud provides the simplest API to convert EPUB to PDF with high quality, easy and fast. The EPUB format has gained popularity as an XML-based e-book format and designed to adapt the content’s presentation to the reader device. It is implemented as an archive file consisting of XHTML files carrying the content, images and other supporting files. PDF is basically a static document that can contain text, images, form-fields, media, digital signatures, hyperlinks, etc. One of the PDF benefits is your paper will be presented exactly how you designed it out, and it is ideal for sending documents that are intended to be printed out.

This article explains in a set of Aspose.HTML Cloud SDK examples how to convert EPUB to PDF. SDKs are available in PHP, C++, Python, C#, Ruby, Java, Android, Swift, and Node.js. We will consider various scenarios of EPUB to PDF conversion:

Converting a local EPUB file to PDF and saving the result in your local file system. In this scenario, we will explore both conversions with default conversion parameters and with explicitly specified parameters.
Converting EPUB to PDF in cloud storage with default conversion parameters.

Examples of EPUB to PDF Conversion

A widespread use case for Aspose.HTML Cloud functions is file processing and converting. Cloud SDK allows you to fetch an EPUB document from a storage location by its name or from a local file on your drive, convert it to a specified format and save it to the storage or the local drive. The following code examples demonstrate how to convert EPUB to PDF for different cases using available SDKs and REST API.

Example 1. Convert EPUB to PDF

Consider converting an EPUB document initially located on a local file system to PDF format. The EPUB to PDF conversion occurs with the default conversion options. The resultant file is then saved back to the local file system.

The following example demonstrates the simplest way to convert EPUB to PDF using C#. EPUB is taken from a local file system, converted to PDF, and saved to the local drive. You can download the C# SDK from the GitHub repository.

1// Initialize SDK API
2var api = new HtmlApi("CLIENT_ID", "CLIENT_SECRET").ConvertApi;
3
4// Convert EPUB to PDF
5var result = await api.ConvertAsync("test.epub", "test.pdf");

Java

The following example demonstrates how to convert EPUB to PDF using Java. EPUB is taken from a local file system, converted to PDF, and saved to the local drive. You can download the java SDK from the GitHub repository.

 1Configuration.setBasePath("https://api.aspose.cloud");
 2Configuration.setAuthPath("https://api.aspose.cloud/connect/token");
 3
 4HtmlApi api = new HtmlApi("CLIENT_ID", "CLIENT_SECRET");
 5
 6JobBuilder builder = new ConverterBuilder()
 7                .fromLocalFile("input.epub")
 8                .saveToLocal("output.pdf");
 9
10OperationResult result = api.convert(builder);

C++

The following example demonstrates how to convert EPUB to PDF C++ language applying. EPUB is taken from a local file system, converted to PDF, and saved to the local drive.

 1// Get current directory
 2std::string cur_dir(argv[0]);
 3int pos = cur_dir.find_last_of("/\\");
 4cur_dir = cur_dir.substr(0, pos + 1); // Include the last slash
 5std::wstring w_cur_dir(cur_dir.begin(), cur_dir.end());
 6
 7const utility::string_t clientId = L"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX";
 8const utility::string_t clientSecret = L"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
 9const utility::string_t basePath = L"https://api.aspose.cloud/v4.0";
10const utility::string_t authPath = L"https://api.aspose.cloud/connect/token";
11
12// Create configuration for authorization
13std::shared_ptr<ApiConfiguration> apiConfig(new ApiConfiguration(clientId, clientSecret, basePath, authPath));
14
15// Create client from configuration
16std::shared_ptr<ApiClient> apiClient(new ApiClient(apiConfig));
17
18// Create ConversionApi
19std::shared_ptr<ConversionApi> api = std::make_shared<ConversionApi>(apiClient);
20
21// File name for conversion
22utility::string_t src = w_cur_dir + L"test.epub";
23utility::string_t dst = w_cur_dir + L"result.pdf";
24
25// Conversion
26auto result = api->convertLocalToLocal(src, dst);
27
28// Check the result file
29auto re = result->getFile();
30std::ifstream f(re.c_str());
31if(!f.good())
32{
33    throw std::runtime_error("Conversion failed");
34}

Python

The following example demonstrates how to convert EPUB to PDF Python language applying. EPUB is taken from a local file system, converted to PDF, and saved to the local drive. You can download the Python SDK from the GitHub repository.

 1from asposehtmlcloud.configuration import Configuration
 2from asposehtmlcloud.api.html_api import HtmlApi
 3from asposehtmlcloud.api_client import ApiClient as Client
 4from asposehtmlcloud.rest import ApiException
 5
 6configuration = Configuration(apiKey="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 7                              appSid="XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
 8                              basePath="https://api.aspose.cloud/v4.0",
 9                              authPath="https://api.aspose.cloud/connect/token",
10                              debug=True)
11client = Client(configuration)
12html_api = HtmlApi(client)
13
14try:
15    res = html_api.convertApi.convert_local_to_local(input_file="test.epub", output_file="test.pdf")
16except ApiException as ex:
17    print("Exception")
18    print("Info: " + str(ex))
19    raise ex

PHP

The following example demonstrates how to convert EPUB to PDF using PHP. EPUB is taken from a local file system, converted to PDF, and saved to the local drive. You can download the PHP SDK from the GitHub repository

 1<?php
 2require_once(__DIR__ . '/vendor/autoload.php');
 3
 4$conf = array(
 5	"basePath" => "https://api.aspose.cloud/v4.0",
 6	"authPath" => "https://api.aspose.cloud/connect/token",
 7	"apiKey" => "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 8	"appSID" => "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
 9	"defaultUserAgent" => "Webkit"
10);
11
12$api_html = new Client\Invoker\Api\HtmlApi($conf);
13
14$src = 'input.epub';
15$dst = 'output.pdf';
16
17try {
18    // Request to server Api
19    $result = $api_html->convertLocalToLocal($src, $dst);
20    print_r($result);
21} catch (Exception $e) {
22    echo 'Exception when calling HtmlApi->convertLocalToLocal: ', $e->getMessage(), PHP_EOL;
23}
24
25?>

Ruby

The following example demonstrates how to convert EPUB to PDF Ruby language applying. EPUB is taken from a local file system, converted to PDF, and saved to the local drive. You can download the Ruby SDK from the GitHub repository.

 1# load the gem
 2require 'aspose_html_cloud'
 3
 4# Get keys from aspose site.
 5# There is free quota available. 
 6# For more details, see https://purchase.aspose.cloud/pricing
 7
 8CONFIG = {
 9    "basePath":"https://api.aspose.cloud/v4.0",
10    "authPath":"https://api.aspose.cloud/connect/token",
11    "apiKey":"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
12    "appSID":"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
13    "debug":true
14}
15
16api_instance = AsposeHtml::HtmlApi.new CONFIG
17
18src = "test.epub"  # String | Full path to the input file.
19dst = "test.pdf"   # String | Full path to the result.
20
21begin
22  #Convert the document from the local file and save result to the local file.
23  result = api_instance.convert_local_to_local(src, dst)
24  p result
25rescue AsposeHtml::ApiError => e
26  puts "Exception when calling api_instance.convert_local_to_local: #{e}"
27end

Node.js

The following example demonstrates how to convert EPUB to PDF Node.js language applying. EPUB is taken from a local file system, converted to PDF, and saved to the local drive.

 1// Get keys from aspose site.
 2// There is free quota available.
 3// For more details, see https://purchase.aspose.cloud/pricing
 4	
 5var conf = {
 6    "basePath":"https://api.aspose.cloud/v4.0",
 7    "authPath":"https://api.aspose.cloud/connect/token",
 8    "apiKey":"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 9    "appSID":"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
10    "defaultUserAgent":"NodeJsWebkit"
11};
12
13var api = require('@asposecloud/aspose-html-cloud');
14
15// Create Conversion Api object
16var conversionApi = new api.ConversionApi(conf);
17
18var src = "/path/to/src/test.epub"; // {String} Source document.
19var dst = "/path/to/dst/test.pdf"; // {String} Result document.
20var opts = null;
21
22var callback = function(error, data, response) {
23  if (error) {
24    console.error(error);
25  } else {
26    console.log(data);
27  }
28};
29
30conversionApi.convertLocalToLocal(src, dst, opts, callback);

Swift

The following example demonstrates how to convert EPUB to PDF Swift language applying. EPUB is taken from a local file system, converted to PDF, and saved to the local drive. You can download the Swift SDK from the GitHub repository.

 1import Alamofire
 2import Foundation
 3import XCTest
 4import AsposeHtmlCloud
 5
 6static let fm = FileManager.default
 7let resourceDir = fm.homeDirectoryForCurrentUser.appendingPathComponent("Documents/Aspose.HTML.Cloud.SDK.Swift/Tests/AsposeHtmlCloudTests/Resources")
 8let resultDir = fm.homeDirectoryForCurrentUser.appendingPathComponent("Documents/Aspose.HTML.Cloud.SDK.Swift/Tests/AsposeHtmlCloudTests/TestResult")
 9
10func url(forResource fileName: String) -> URL {
11	return resourceDir.appendingPathComponent(fileName)
12}
13
14func fileExist(name: String) -> Bool {
15	return FileManager.default.fileExists(atPath: name)
16}
17
18ClientAPI.setConfig(
19	basePath: "https://api.aspose.cloud/v4.0",
20	authPath: "https://api.aspose.cloud/connect/token",
21	apiKey: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
22	appSID: "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
23	debugging: true
24)
25
26let fileName = "test.epub"
27let format = "pdf"
28let src = url(forResource: fileName).absoluteString
29
30let expectation = self.expectation(description: "testConvert to \(format)")
31let dst = resultDir.appendingPathComponent("Output.\(format)").absoluteString
32HtmlAPI.convertLocalToLocal(src: src, dst: dst, options: nil) { (data, error) in
33
34	guard error == nil else {
35		XCTFail("Error convert epub to \(format)). Error=\(error!.localizedDescription)")
36		return
37	}
38	let resultPath = data!.file!
39	XCTAssertTrue(fileExist(name: resultPath))
40	expectation.fulfill()
41}
42self.waitForExpectations(timeout: 100.0, handler: nil)

Java/Android

The following example demonstrates how to convert EPUB to PDF using Java/Android. EPUB is taken from a local file system, converted to PDF, and saved to the local drive. You can download the Java/Android SDK from the GitHub repository.

 1Configuration.setBasePath("https://api.aspose.cloud");
 2Configuration.setAuthPath("https://api.aspose.cloud/connect/token");
 3
 4HtmlApi api = new HtmlApi("CLIENT_ID", "CLIENT_SECRET");
 5
 6JobBuilder builder = new ConverterBuilder()
 7                .fromLocalFile("input.epub")
 8                .saveToLocal("output.pdf");
 9
10OperationResult result = api.convert(builder);

CURL

The following example demonstrates how to convert EPUB to PDF using REST API. EPUB is taken from a local file system, converted to PDF, and saved to the local drive. Follow a few required steps:

Upload a local file to storage using Storage API.
Call REST API to execute conversion (in the example below).
Download conversion result back from storage using Storage API.

1curl -X POST -v \
2	"https://api.aspose.cloud/v4.0/html/conversion/epub-pdf" \
3    -d "{'InputPath': '/testpage.epub', 'OutputFile': 'test.pdf'}" \
4    -H "Content-Type: application/json" \
5    -H "Authorization:Bearer <JWT_token>"

EPUB to PDF conversion occurs with the default conversion options: the resulting PDF document’s width and height correspond to A4, and all margins have zero value.

Example 2. Convert EPUB to PDF with explicitly specified options

The example below demonstrates how to convert an EPUB file from a local file system to PDF with explicitly specified options and save the result back to the file system.

The following SDK example demonstrates how to convert EPUB to PDF using C#. You can download the C# SDK from the GitHub repository.

 1// Initialize SDK API
 2var api = new HtmlApi("CLIENT_ID", "CLIENT_SECRET").ConvertApi;
 3
 4// Create an options object and specify options for EPUB to PDF conversion
 5var options = new PDFConversionOptions()
 6                .SetHeight(8.3)
 7                .SetWidth(11.7)
 8                .SetLeftMargin(0.5)
 9                .SetRightMargin(0.5)
10                .SetBottomMargin(0.5)
11                .SetTopMargin(0.5);
12
13// Convert EPUB file to PDF format
14var result = await api.ConvertAsync("test.epub", "test.pdf", options);

Java

The following example demonstrates how to convert EPUB to PDF using Java. EPUB is taken from the local file system, converted to PDF and saved to the local path. You can download the java SDK from the GitHub repository.

 1Configuration.setBasePath("https://api.aspose.cloud");
 2Configuration.setAuthPath("https://api.aspose.cloud/connect/token");
 3
 4HtmlApi api = new HtmlApi("CLIENT_ID", "CLIENT_SECRET");
 5
 6PDFConversionOptions opt_A5 = new PDFConversionOptions()
 7                    .setWidth(5.8)        // A5 format in inches
 8                    .setHeight(8.3)
 9                    .setTopMargin(0.5)
10                    .setBottomMargin(0.5)
11                    .setLeftMargin(0.5)
12                    .setRightMargin(0.5)
13                    .setQuality(95);
14
15JobBuilder builder = new ConverterBuilder()
16                .fromLocalFile("input.epub")
17                .useOptions(opt_A5)
18                .saveToLocal("output.pdf");
19
20OperationResult result = api.convert(builder);

C++

The following example demonstrates how to convert EPUB to PDF using C++. EPUB is taken from the local file system, converted to PDF and saved to the local drive.

 1// Get current directory
 2std::string cur_dir(argv[0]);
 3int pos = cur_dir.find_last_of("/\\");
 4cur_dir = cur_dir.substr(0, pos + 1); // Include the last slash
 5std::wstring w_cur_dir(cur_dir.begin(), cur_dir.end());
 6
 7const utility::string_t clientId = L"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX";
 8const utility::string_t clientSecret = L"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
 9const utility::string_t basePath = L"https://api.aspose.cloud/v4.0";
10const utility::string_t authPath = L"https://api.aspose.cloud/connect/token";
11
12// Create configuration for authorization
13std::shared_ptr<ApiConfiguration> apiConfig(new ApiConfiguration(clientId, clientSecret, basePath, authPath));
14
15// Create client from configuration
16std::shared_ptr<ApiClient> apiClient(new ApiClient(apiConfig));
17
18// Create ConversionApi
19std::shared_ptr<ConversionApi> api = std::make_shared<ConversionApi>(apiClient);
20
21// File name for conversion
22utility::string_t src = w_cur_dir + L"test.epub";
23utility::string_t dst = w_cur_dir + L"result.pdf";
24
25std::shared_ptr<ConversionOptions> opts = std::make_shared<ConversionOptions>();
26opts->setWidth(8.3)
27    ->setHeight(11.7)
28    ->setLeftMargin(0.2)
29    ->setRightMargin(0.2)
30    ->setTopMargin(0.2)
31    ->setBottomMargin(0.2);
32
33// Conversion
34auto result = api->convertLocalToLocal(src, dst, opts);
35
36// Check the result file
37auto re = result->getFile();
38std::ifstream f(re.c_str());
39if(!f.good())
40{
41    throw std::runtime_error("Conversion failed");
42}

Python

The following example demonstrates how to convert EPUB to PDF Python language applying. EPUB is taken from the local file system, converted to PDF and saved to the local drive. You can download the Python SDK from the GitHub repository.

 1from asposehtmlcloud.configuration import Configuration
 2from asposehtmlcloud.api.html_api import HtmlApi
 3from asposehtmlcloud.api_client import ApiClient as Client
 4from asposehtmlcloud.rest import ApiException
 5
 6configuration = Configuration(apiKey="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 7                              appSid="XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
 8                              basePath="https://api.aspose.cloud/v4.0",
 9                              authPath="https://api.aspose.cloud/connect/token",
10                              debug=True)
11client = Client(configuration)
12html_api = HtmlApi(client)
13
14options = {
15    'width': 8.3,
16    'height': 11.7,
17    'topmargin': 0.2,
18    'bottommargin': 0.2,
19    'leftmargin': 0.2,
20    'rightmargin': 0.2
21}
22
23try:
24    res = html_api.convertApi.convert_local_to_local(input_file="test.epub", output_file="test.pdf", options=options)
25except ApiException as ex:
26    print("Exception")
27    print("Info: " + str(ex))
28    raise ex

PHP

The following example demonstrates how to convert EPUB to PDF using PHP. You can download the PHP SDK from the GitHub repository

 1<?php
 2require_once(__DIR__ . '/vendor/autoload.php');
 3
 4$conf = array(
 5	"basePath" => "https://api.aspose.cloud/v4.0",
 6	"authPath" => "https://api.aspose.cloud/connect/token",
 7	"apiKey" => "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 8	"appSID" => "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
 9	"defaultUserAgent" => "Webkit"
10);
11
12$api_html = new Client\Invoker\Api\HtmlApi($conf);
13
14$src = 'input.epub';
15$dst = 'output.pdf';
16
17$options_a4 = [
18    'width' => 8.3,
19    'height' => 11.7,
20    'left_margin' => 0.2,
21    'right_margin' => 0.2,
22    'top_margin' => 0.2,
23    'bottom_margin' => 0.2
24];
25
26
27try {
28    // Request to server Api
29    $result = $api_html->convertLocalToLocal($src, $dst, $options_a4);
30    print_r($result);
31} catch (Exception $e) {
32    echo 'Exception when calling HtmlApi->convertLocalToLocal: ', $e->getMessage(), PHP_EOL;
33}
34?>

Ruby

The following example demonstrates how to convert EPUB to PDF Ruby language applying. EPUB is taken from the local file system, converted to PDF and saved to the local path. You can download the Ruby SDK from the GitHub repository.

 1# load the gem
 2require 'aspose_html_cloud'
 3
 4# Get keys from aspose site.
 5# There is free quota available. 
 6# For more details, see https://purchase.aspose.cloud/pricing
 7
 8
 9CONFIG = {
10    "basePath":"https://api.aspose.cloud/v4.0",
11    "authPath":"https://api.aspose.cloud/connect/token",
12    "apiKey":"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
13    "appSID":"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
14    "debug":true
15}
16
17api_instance = AsposeHtml::HtmlApi.new CONFIG
18
19src = "test.epub" # String | Source file.
20dst = "test.pdf"  # String | Result file.
21
22opts = { 
23  width: 8.3,        # Float | Resulting document width in inches.
24  height: 11.7,      # Float | Resulting document height in inches.
25  left_margin: 0.2,  # Float | Left resulting document margin in inches.
26  right_margin: 0.2, # Float | Right resulting document margin in inches.
27  top_margin: 0.2,   # Float | Top resulting document margin in inches.
28  bottom_margin: 0.2 # Float | Bottom resulting document margin in inches.
29}
30
31begin
32  #Convert the HTML file from the local file and save result to the local file.
33  result = api_instance.convert_local_to_local(src, dst, opts)
34  p result
35rescue AsposeHtml::ApiError => e
36  puts "Exception when calling api_instance.convert_local_to_local: #{e}"
37end

Node.js

The following example demonstrates how to convert EPUB to PDF Node.js language applying.

 1// Get keys from aspose site.
 2// There is free quota available.
 3// For more details, see https://purchase.aspose.cloud/pricing
 4	
 5var conf = {
 6    "basePath":"https://api.aspose.cloud/v4.0",
 7    "authPath":"https://api.aspose.cloud/connect/token",
 8    "apiKey":"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 9    "appSID":"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
10    "defaultUserAgent":"NodeJsWebkit"
11};
12
13var api = require('@asposecloud/aspose-html-cloud');
14
15// Create Conversion Api object
16var conversionApi = new api.ConversionApi(conf);
17
18var src = "/path/to/src/test.epub"; // {String} Source document.
19var dst = "/path/to/dst/test.pdf"; // {String} Result document.
20var opts = {
21    'width': 8.3,
22    'height': 11.7,
23    'leftMargin': 0.2,
24    'rightMargin': 0.2,
25    'topMargin': 0.2,
26    'bottomMargin': 0.2
27};
28
29var callback = function(error, data, response) {
30  if (error) {
31    console.error(error);
32  } else {
33    console.log(data);
34  }
35};
36
37conversionApi.convertLocalToLocal(src, dst, opts, callback);

Swift

The following example demonstrates how to convert EPUB to PDF Swift language applying. EPUB is taken from the local file system, converted to PDF and saved to the local drive. You can download the Swift SDK from the GitHub repository.

 1import Alamofire
 2import Foundation
 3import XCTest
 4import AsposeHtmlCloud
 5
 6static let fm = FileManager.default
 7let resourceDir = fm.homeDirectoryForCurrentUser.appendingPathComponent("Documents/Aspose.HTML.Cloud.SDK.Swift/Tests/AsposeHtmlCloudTests/Resources")
 8let resultDir = fm.homeDirectoryForCurrentUser.appendingPathComponent("Documents/Aspose.HTML.Cloud.SDK.Swift/Tests/AsposeHtmlCloudTests/TestResult")
 9
10func url(forResource fileName: String) -> URL {
11	return resourceDir.appendingPathComponent(fileName)
12}
13
14func fileExist(name: String) -> Bool {
15	return FileManager.default.fileExists(atPath: name)
16}
17
18ClientAPI.setConfig(
19	basePath: "https://api.aspose.cloud/v4.0",
20	authPath: "https://api.aspose.cloud/connect/token",
21	apiKey: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
22	appSID: "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
23	debugging: true
24)
25
26let fileName = "test.epub"
27let format = "pdf"
28let src = url(forResource: fileName).absoluteString
29let options = Options(width: 8.3, height: 11.7, leftMargin: 0.2,
30        rightMargin: 0.2, topMargin: 0.2, bottomMargin: 0.2)
31
32
33let expectation = self.expectation(description: "testConvert to \(format)")
34let dst = resultDir.appendingPathComponent("Output.\(format)").absoluteString
35HtmlAPI.convertLocalToLocal(src: src, dst: dst, options: options) { (data, error) in
36
37	guard error == nil else {
38		XCTFail("Error convert epub to \(format)). Error=\(error!.localizedDescription)")
39		return
40	}
41	let resultPath = data!.file!
42	XCTAssertTrue(fileExist(name: resultPath))
43	expectation.fulfill()
44}
45self.waitForExpectations(timeout: 100.0, handler: nil)

Java/Android

The following example demonstrates how to convert EPUB to PDF using Java/Android. EPUB is taken from the local file system, converted to PDF and saved to the local drive. You can download the Java/Android SDK from the GitHub repository.

 1Configuration.setBasePath("https://api.aspose.cloud");
 2Configuration.setAuthPath("https://api.aspose.cloud/connect/token");
 3
 4HtmlApi api = new HtmlApi("CLIENT_ID", "CLIENT_SECRET");
 5
 6PDFConversionOptions opt_A5 = new PDFConversionOptions()
 7                    .setWidth(5.8)        // A5 format in inches
 8                    .setHeight(8.3)
 9                    .setTopMargin(0.5)
10                    .setBottomMargin(0.5)
11                    .setLeftMargin(0.5)
12                    .setRightMargin(0.5)
13                    .setQuality(95);
14
15JobBuilder builder = new ConverterBuilder()
16                .fromLocalFile("input.epub")
17                .useOptions(opt_A5)
18                .saveToLocal("output.pdf");
19
20OperationResult result = api.convert(builder);

CURL

The following example demonstrates how to convert EPUB to PDF using REST API. Local EPUB converted to PDF and saved to the local file system. Follow a few required steps:

Upload local file to storage using Storage API.
Call REST API to execute conversion (in the example below).
Download conversion result back from storage using Storage API.

1curl -X POST -v \
2	"https://api.aspose.cloud/v4.0/html/conversion/epub-pdf" \
3    -d "{'InputPath': '/testpage.epub', 'OutputFile': 'test.pdf', 'Options': {'Width':1000, 'Height': 800, 'LeftMargin': 10, 'RightMargin': 10, 'TopMargin': 10, 'BottomMargin': 10}}" \
4    -H "Content-Type: application/json" \
5    -H "Authorization: bearer <token>"

More details about available conversion parameters for EPUB files are in the SDK Conversion Options section.

Example 3. Convert EPUB to PDF inside cloud storage

Aspose.HTML Cloud allows you to get an EPUB file from your cloud storage and save conversion result back to cloud storage.

The following example shows how to convert EPUB to PDF using C#. The EPUB file is in cloud storage, converted to PDF and saved back to cloud storage. You can download the C# SDK from the GitHub repository.

1// Initialize SDK API
2var api = new HtmlApi("CLIENT_ID", "CLIENT_SECRET").ConvertApi;
3
4// Convert EPUB to PDF using ConvertAsync() method
5var builder = new ConverterBuilder()
6                .FromStorageFile("/test.epub")
7                .ToStorageFile("/test.pdf");
8                
9var result = await api.ConvertAsync(builder);

Java

The following example shows how to convert EPUB to PDF using Java. EPUB is located in cloud storage, converted to PDF and saved to cloud storage. You can download the java SDK from the GitHub repository.

 1Configuration.setBasePath("https://api.aspose.cloud");
 2Configuration.setAuthPath("https://api.aspose.cloud/connect/token");
 3
 4HtmlApi api = new HtmlApi("CLIENT_ID", "CLIENT_SECRET");
 5
 6JobBuilder builder = new ConverterBuilder()
 7                .fromStorageFile("input.epub")
 8                .saveToStorage("output.pdf");
 9
10OperationResult result = api.convert(builder);

C++

The following example demonstrates how to convert EPUB to PDF using C++. EPUB is located in cloud storage, converted to PDF and saved back to cloud storage.

 1const utility::string_t clientId = L"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX";
 2const utility::string_t clientSecret = L"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX";
 3const utility::string_t basePath = L"https://api.aspose.cloud/v4.0";
 4const utility::string_t authPath = L"https://api.aspose.cloud/connect/token";
 5
 6// Create configuration for authorization
 7std::shared_ptr<ApiConfiguration> apiConfig(new ApiConfiguration(clientId, clientSecret, basePath, authPath));
 8
 9// Create client from configuration
10std::shared_ptr<ApiClient> apiClient(new ApiClient(apiConfig));
11
12// Create ConversionApi
13std::shared_ptr<ConversionApi> api = std::make_shared<ConversionApi>(apiClient);
14
15// File name for conversion
16utility::string_t src = L"file/in/storage/index.epub";
17utility::string_t dst = L"result/in/storage/result.pdf";
18
19// Conversion
20auto result = api->convertStorageToStorage(src, dst);

Python

The following example shows how to convert EPUB to PDF Python language applying. EPUB file is in cloud storage, converted to PDF and saved back to cloud storage. You can download the Python SDK from the GitHub repository.

 1from asposehtmlcloud.configuration import Configuration
 2from asposehtmlcloud.api.html_api import HtmlApi
 3from asposehtmlcloud.api_client import ApiClient as Client
 4from asposehtmlcloud.rest import ApiException
 5
 6configuration = Configuration(apiKey="XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 7                              appSid="XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
 8                              basePath="https://api.aspose.cloud/v4.0",
 9                              authPath="https://api.aspose.cloud/connect/token",
10                              debug=True)
11client = Client(configuration)
12html_api = HtmlApi(client)
13
14try:
15    res = html_api.convertApi.convert_storage_to_storage(input_file="test.epub", output_file="test.pdf",
16                                                         storage_name=None)
17except ApiException as ex:
18    print("Exception")
19    print("Info: " + str(ex))
20    raise ex

PHP

The following example demonstrates how to convert EPUB to PDF using PHP. The EPUB file is in cloud storage, converted to PDF and saved back to cloud storage. You can download the PHP SDK from the GitHub repository.

 1<?php
 2require_once(__DIR__ . '/vendor/autoload.php');
 3
 4$configuration = array(
 5    "basePath" => "https://api.aspose.cloud/v4.0",
 6    "authPath" => "https://api.aspose.cloud/connect/token",
 7    "apiKey" => "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 8    "appSID" => "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
 9    "defaultUserAgent" => "Webkit"
10);
11
12$api_html = new HtmlApi($configuration);
13
14$src = "FolderInStorage/test.epub";
15$dst = 'FolderInStorage/test.pdf';
16$options = null;
17
18try {
19    $result = $api_html->convertStorageToStorage($src, $dst, null, $options);
20    print_r($result);
21} catch (Exception $e) {
22    echo 'Exception when calling $api_html->convertStorageToStorage: ', $e->getMessage(), PHP_EOL;
23}
24?>

Ruby

The following example shows how to convert EPUB to PDF Ruby language applying. The EPUB file is in cloud storage, converted to PDF and saved back to cloud storage. You can download the Ruby SDK from the GitHub repository.

 1# load the gem
 2require 'aspose_html_cloud'
 3
 4# Get keys from aspose site.
 5# There is free quota available. 
 6# For more details, see https://purchase.aspose.cloud/pricing
 7
 8
 9CONFIG = {
10    "basePath":"https://api.aspose.cloud/v4.0",
11    "authPath":"https://api.aspose.cloud/connect/token",
12    "apiKey":"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
13    "appSID":"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
14    "debug":true
15}
16
17api_instance = AsposeHtml::HtmlApi.new CONFIG
18
19src = "FolderInStorage/test.epub" # String | Source file.
20dst = "FolderInStorage/test.pdf"  # String | Result file.
21storage = nil
22
23begin
24  #Convert the file from the storage and save result to the storage.
25  result = api_instance.convert_storage_to_storage(src, dst, storage)
26  p result
27rescue AsposeHtml::ApiError => e
28  puts "Exception when calling api_instance.convert_storage_to_storage: #{e}"
29end

Node.js

The following example shows how to convert EPUB to PDF Node.js language applying. The EPUB file is in cloud storage, converted to PDF and saved back to cloud storage.

 1// Get keys from aspose site.
 2// There is free quota available.
 3// For more details, see https://purchase.aspose.cloud/pricing
 4	
 5var conf = {
 6    "basePath":"https://api.aspose.cloud/v4.0",
 7    "authPath":"https://api.aspose.cloud/connect/token",
 8    "apiKey":"XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
 9    "appSID":"XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
10    "defaultUserAgent":"NodeJsWebkit"
11};
12
13var api = require('@asposecloud/aspose-html-cloud');
14
15// Create Conversion Api object
16var conversionApi = new api.ConversionApi(conf);
17
18var src = "FolderInStorage/test.epub"; // {String} Source document.
19var dst = "FolderInStorage/test.pdf"; // {String} Result document.
20var opts = null;
21var storage = null;
22
23var callback = function(error, data, response) {
24  if (error) {
25    console.error(error);
26  } else {
27    console.log(data);
28  }
29};
30
31conversionApi.convertStorageToStorage(src, dst, storage, opts, callback);

Swift

The following example shows how to convert EPUB to PDF Swift language applying. The EPUB file is in cloud storage, converted to PDF and saved back to cloud storage. You can download the Swift SDK from the GitHub repository.

 1import Alamofire
 2import Foundation
 3import XCTest
 4import AsposeHtmlCloud
 5
 6ClientAPI.setConfig(
 7	basePath: "https://api.aspose.cloud/v4.0",
 8	authPath: "https://api.aspose.cloud/connect/token",
 9	apiKey: "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
10	appSID: "XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX",
11	debugging: true
12)
13
14let src = "FolderInStorage/test.epub"
15let dst = "FolderInStorage/test.pdf"
16
17let expectation = self.expectation(description: "testConvert to pdf")
18
19HtmlAPI.convertStorageToStorage(src: src, dst: dst, storage: nil, options: nil) { (data, error) in
20
21    guard error == nil else {
22        XCTFail("Error convert epub to pdf. Error=\(error!.localizedDescription)")
23        return
24    }
25
26    let resultPath = data!.file!
27
28    StorageAPI.objectExists(path: resultPath, storageName: nil, versionId: nil) {(data, error) in
29        guard error == nil else {
30            XCTFail("Error objectExists exist. Error=\(error!.localizedDescription)")
31            return
32        }
33
34        XCTAssertTrue(data!.exists)
35        XCTAssertFalse(data!.isFolder)
36        expectation.fulfill()
37    }
38}
39self.waitForExpectations(timeout: 100.0, handler: nil)

Java/Android

The following example shows how to convert EPUB to PDF using Java/Android. The EPUB file is in cloud storage, converted to PDF and saved back to cloud storage. You can download the Java/Android SDK from the GitHub repository.

 1Configuration.setBasePath("https://api.aspose.cloud");
 2Configuration.setAuthPath("https://api.aspose.cloud/connect/token");
 3
 4HtmlApi api = new HtmlApi("CLIENT_ID", "CLIENT_SECRET");
 5
 6JobBuilder builder = new ConverterBuilder()
 7                .fromStorageFile("input.epub")
 8                .saveToStorage("output.pdf");
 9
10OperationResult result = api.convert(builder);

CURL

The following example demonstrates how to convert EPUB to PDF using REST API. The EPUB file is in cloud storage, converted to PDF and saved back to cloud storage.

1curl -X POST -v \
2	"https://api.aspose.cloud/v4.0/html/conversion/epub-pdf" \
3    -d "{'InputPath': '/test.epub', 'OutputFile': '/test.pdf'}" \
4    -H "Content-Type: application/json" \
5    -H "Authorization:Bearer <JWT_token>"

Convert EPUB to PDF using Cloud SDK – Aspose.HTML

Examples of EPUB to PDF Conversion

Example 1. Convert EPUB to PDF

Example 2. Convert EPUB to PDF with explicitly specified options

Example 3. Convert EPUB to PDF inside cloud storage

See Also