PDF preview failing in Nuxeo – Unexpected server response (500)

Aspose.Words Product Family
1

I’m facing an issue while trying to open a PDF preview inside Nuxeo. The viewer shows the following error from PDF.js:

PDF.js v2.12.313 (build: a2ae56f39)
Message: Unexpected server response (500) while retrieving PDF
http://localhost:8080/nuxeo/api/v1/repo/default/id/ce4202f5-f247-4add-a43d-19e87d295c79/@rendition/pdf?clientReason=view.

Environment
Nuxeo Version: LTS 2021

2

@Manish7320

The 500 response comes from the Nuxeo server when it tries to generate the @rendition/pdf. PDF.js only reports the HTTP error; the root cause is in the server‑side processing (Aspose.PDF rendition).

Next steps to isolate the problem

  1. Check Nuxeo server logs (nuxeo.log or log4j2.xml output) for the request
    GET /nuxeo/api/v1/repo/default/id/<doc-id>/@rendition/pdf?clientReason=view.
    Look for a stack trace that mentions Aspose.PDF (e.g., com.aspose.pdf.*).

  2. Verify Aspose.PDF license – an invalid or missing license can throw a server‑side exception when rendering PDFs.

  3. Confirm the Aspose.PDF version used in your Nuxeo installation. Nuxeo LTS 2021 is compatible with Aspose.PDF 20.x‑21.x; older versions may fail on certain PDFs.

  4. Test the PDF directly with Aspose.PDF (outside Nuxeo) to ensure the file itself is not corrupted:

    Document pdf = new Document("path/to/file.pdf");
pdf.save("out.pdf");

    If this throws an exception, the PDF content is the issue.

  5. Rendition configuration – ensure the PDF rendition is enabled in nuxeo.conf (e.g., nuxeo.rendition.pdf.enabled=true) and that no custom automation chain overrides the default behavior.

What to provide if the issue persists

  • Nuxeo version (you already have LTS 2021) and exact Aspose.PDF jar version.
  • Full stack trace from the server log for the failing request.
  • A minimal sample PDF that reproduces the error (if possible).

With that information we can pinpoint whether it’s a licensing problem, an incompatibility, or a PDF‑specific error and suggest the appropriate fix.

3

  1. In server log i got like this error
    com.aspose.words.FileCorruptedException
    The document appears to be corrupted and cannot be loaded

  2. Aspose license looks valid

some of the documents fail the same way after recent migration from GCP to AWS, and all of them used to preview correctly before migration.

while i open the file its showing like this document is corrupted, how can i solve this issue, do u have any solution

4

@Manish7320

The error description looks related to Aspose.Words. Therefore, we are moving this thread to respective category where you will be assisted accordingly.

5

could you please check ASAP?

6

@Manish7320 Could you please attach the problematic input document and simple code that will allow us to reproduce the problem? We will check the issue and provide you more information.