When an admission portal rejects a PDF, read the upload instruction before changing the document. The problem may be the file type, size or security settings rather than the information on the page.
Check the stated limits
Note the accepted format and maximum size. Some fields request a single image rather than a PDF; others require all pages in one PDF. Renaming “photo.jpg” to “photo.pdf” does not convert the file.
Open the document on your own device. If it is damaged, blank, password-protected or still downloading, create a fresh readable copy from the original source. Do not remove a document’s contents to make it pass a size check.
Try a controlled sequence
- Give the file a short, plain filename without unusual symbols.
- Confirm that it opens and contains the intended pages.
- Export it in the requested format.
- Reduce size moderately if necessary, then check readability again.
- Try one upload and inspect the confirmation or preview.
Keep a master copy outside this process. Repeatedly compressing an already compressed document can turn small text into blur.
If the error persists
Try an updated browser and a stable connection. Record the exact error, field name, file size and time attempted. Send those details to the institution’s portal support, together with a screenshot that does not expose unrelated personal data.
If the deadline is near, request the school’s approved alternative submission route. Do not assume that emailing a file to a random staff address counts as a completed application.
Can I use an online converter?
Be selective about where you send identity documents. A trusted local export tool is preferable when it can do the job.
Should I submit an empty file to beat the deadline?
No. A successful upload of the wrong content may leave the application incomplete. Report the technical problem and ask for an authorised route.
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