PDF upload limit guide

Compress PDF Under 10MB for Uploads

Many portals accept PDFs only up to a fixed size. If a scan, proposal, or supporting document is above 10MB, the upload may fail right at the final step.

Last verified: July 18, 2026. 10MB limits vary by portal, document type, and workflow. Always follow the live file-size prompt shown by the destination website.

Install onceBrowser workflowNo server storage

Why the upload failed

Upload errors usually come from files that are just over the limit, exported in the wrong format, or created from high-resolution scans and phone photos.

1

Large source file

Scanned pages were exported as full-resolution images.

2

Upload target

The destination portal has a 10MB-style upload cap.

3

Portal mismatch

The PDF contains unnecessary pages, duplicate scans, or embedded images.

Manual fix, then permanent fix

Compress images, remove blank pages, split documents only when the portal allows it, and verify that all details remain readable.

Auto Compress helps keep the fix inside Chrome so recurring upload limits do not send you through the compress-download-reupload loop.

1

Check the prompt

Use the latest file-size and format rule shown by the upload portal.

2

Prepare a smaller file

Compress carefully so the document remains readable.

3

Upload normally

The destination website receives the smaller file. Auto Compress does not store it for compression.

One extension for recurring upload limits

Install Auto Compress and stop repeating manual compression.

Install Chrome Extension