Hi Aspose team,
I’m using the POST /pdf/{name}/sign
API to digitally sign a PDF file with a .pfx
certificate. Here’s the request I’m sending via curl
:
bash
CopyEdit
curl --location 'https://api.aspose.cloud/v3.0/pdf/file333.pdf/sign' \
--header 'authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"SignaturePath": "fred.pfx",
"FormFieldName": "sign1",
"SignatureType": "PKCS7",
"ShowDate": true,
"Password": "apples",
"Appearance": "rajat_sign.png",
"Reason": "reason",
"Visible": true,
"Rectangle": {
"LLX": 148,
"LLY": 456,
"URX": 29,
"URY": 541
},
"ShowProperties": false
}'
Issue:
- I want to display the signing date and timestamp.
- I do not want to show the
CN=fred
(the name in the .pfx
file).
- When I set
"ShowProperties": false
, the date/time does not show either.
- If I set
"ShowProperties": true
, then the CN=fred
appears, which I don’t want to show.
Hi, @sidharth.chauhan
Are the signature fields displayed in the properties window?
Yes, the CN=fred
is visibly displayed on the page itself inside the signature appearance box
Screenshot 2025-06-19 at 8.22.47 PM.png (327.5 KB)
@sidharth.chauhan , this is currently not supported. The digital subject name
is always displayed, but you can manipulate other fields using the CustomAppearance
field Aspose.Pdf Cloud - API References
@sidharth.chauhan
Im report issue and logged the following ticket in our issue tracking system for further investigation and rectification. We will notify you as soon as these issues are resolved.
PDFCLOUD-5030 Add possibility to hide subject field in signature appearance.
thanks for considering this , please let me know after release
Hello ,
Can you please share update on PDFCLOUD-5030
@sidharth.chauhan
the update will be coming soon, i will notify you as soon as the update is released
@sidharth.chauhan
The issues you have found earlier (filed as PDFCLOUD-5030) have been fixed in this version 25.7. Please update your client SDK, you will find new properties for CustomAppearance:
curl --location 'https://api.aspose.cloud/v3.0/pdf/file333.pdf/sign' \
--header 'authorization: Bearer <token>' \
--header 'Content-Type: application/json' \
--data '{
"SignaturePath": "fred.pfx",
"FormFieldName": "sign1",
"SignatureType": "PKCS7",
"ShowDate": true,
"Password": "apples",
"Appearance": "rajat_sign.png",
"Reason": "reason",
"Visible": true,
"Rectangle": {
"LLX": 148,
"LLY": 456,
"URX": 29,
"URY": 541
},
"ShowProperties": true,
"CustomAppearance": {
"DateSignedAtLabel":"date",
"UseDigitalSubjectFormat":true,
"DigitalSubjectFormat":[]
}
}'
Can i pass the custom string like , Digitally signed by “username”?
Can you please share what i can add in DigitalSubjectFormat @kirill.novinskiy