The XFDF Merge API is returning a 502 Bad Gateway error when attempting to merge certain PDFs. The PDF loads correctly in the PDF viewer without any issues, but the merge API fails when processing it.
Endpoint: https://api.pdfjs.express/xfdf/merge HTTP Method: POST
https://api.pdfjs.express/xfdf/merge
POST
Screenshot:
Attachment: test.pdf (1.1 MB)
Hi there,
If you inspect the error in the network logs, there should be an error code returned. We have a guide on the error codes here:
If the error occur before the request, then could you share how you are using the merge API?
best regards, Kevin
