curl -X POST "https://api.aspose.cloud/v3.0/pdf/4pages.pdf/fields/signature" -H "accept: application/json" -H "Content-Type: application/json" -d "{ \"Links\": [ { \"Href\": \"http://abc.com/abc.pdf\", \"Rel\": \"string\", \"Type\": \"string\", \"Title\": \"string\" } ], \"PartialName\": \"string\", \"FullName\": \"string\", \"Rect\": { \"LLX\": 0, \"LLY\": 0, \"URX\": 0, \"URY\": 0 }, \"Value\": \"string\", \"PageIndex\": 0, \"Height\": 0, \"Width\": 0, \"ZIndex\": 0, \"IsGroup\": true, \"IsSharedField\": true, \"Flags\": [ \"Default\" ], \"Color\": { \"A\": 0, \"R\": 0, \"G\": 0, \"B\": 0 }, \"Contents\": \"string\", \"Margin\": { \"Left\": 0, \"Right\": 0, \"Top\": 0, \"Bottom\": 0 }, \"Highlighting\": \"None\", \"HorizontalAlignment\": \"None\", \"VerticalAlignment\": \"None\", \"Border\": { \"Width\": 0, \"EffectIntensity\": 0, \"Style\": \"Solid\", \"Effect\": \"None\", \"Dash\": { \"On\": 0, \"Off\": 0 }, \"Color\": { \"A\": 0, \"R\": 0, \"G\": 0, \"B\": 0 } }, \"Signature\": { \"SignaturePath\": \"string\", \"SignatureType\": \"PKCS1\", \"Password\": \"string\", \"Appearance\": \"string\", \"Reason\": \"string\", \"Contact\": \"string\", \"Location\": \"string\", \"Visible\": true, \"Rectangle\": { \"LLX\": 0, \"LLY\": 0, \"URX\": 0, \"URY\": 0 }, \"FormFieldName\": \"string\", \"Authority\": \"string\", \"Date\": \"string\", \"ShowProperties\": true, \"TimestampSettings\": { \"ServerUrl\": \"string\", \"BasicAuthCredentials\": \"string\" }, \"IsValid\": true, \"CustomAppearance\": { \"FontFamilyName\": \"string\", \"FontSize\": 0, \"ShowContactInfo\": true, \"ShowReason\": true, \"ShowLocation\": true, \"ContactInfoLabel\": \"string\", \"ReasonLabel\": \"string\", \"LocationLabel\": \"string\", \"DigitalSignedLabel\": \"string\", \"DateSignedAtLabel\": \"string\", \"DateTimeLocalFormat\": \"string\", \"DateTimeFormat\": \"string\" } }}" -H "authorization: Bearer eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJuYmYiOjE1OTQzNjg3MzIsImV4cCI6MTU5NDQ1NTEzMiwiaXNzIjoiaHR0cHM6Ly9hcGkuYXNwb3NlLmNsb3VkIiwiYXVkIjpbImh0dHBzOi8vYXBpLmFzcG9zZS5jbG91ZC9yZXNvdXJjZXMiLCJhcGkucGxhdGZvcm0iLCJhcGkucHJvZHVjdHMiLCJhcGkuc3RvcmFnZSJdLCJjbGllbnRfaWQiOiJiZmM1MzQyOS01NzkwLTRhZTUtOGE5Ni04OWVjYWJlNGIyYTAiLCJjbGllbnRfZGVmYXVsdF9zdG9yYWdlIjoiMjVDNDNBNUMtMEQ1RS00MjFCLTlGMTUtQjRCNzY0RDRCMEVEIiwiY2xpZW50X2lkU3J2SWQiOiI0MDQ4OTkiLCJzY29wZSI6WyJhcGkucGxhdGZvcm0iLCJhcGkucHJvZHVjdHMiLCJhcGkuc3RvcmFnZSJdfQ.dffSyfQnUjUeHWxe1x8F-aWcQLmDLQH11nEo6yi5udVSBLMIQdQ9rZbF52MzYygIBch8j_Ee8t3vVgP754cp1sEOjqOqQ3ZzmT8gGe4X4hp57Y5CU2N0Wqv4CGYY7_TFplRl-1xsUVYjmDZMND0-JjSCSGPXXjy0A0PV8qfIAfBGyImSApdAbD9qJTfwncaZLOeQN_KL-9p3QyScT9d7V_NvXMA_cYc6XQZtlJvgO-Zn4EypNUS2n4kwkJqh3dxrrmMiHZlSsDRCmSP16BcI4xDUtU7LEyJJFUdR4bUM4e_CtNW3tedwT-D5UI06gIYjTV2cKekgfVCGC-9sVcMmpQ"