Compress PDF for online applications

Prepare supporting scans for portals that require a size limit. Compression stays on your device — files are never uploaded.

  • 100% local
  • No upload
  • Free to use
Target size
Quality

Compression starts when you select a file · max 20.0 MB, 50 pages · files stay on your device

Simple flow

How it works

Secure, local compression for scanned documents — no account, no upload.

1

Match the portal limit

Choose 200KB, 500KB, 1MB, or 2MB based on the checklist.

2

Add supporting scans

Files stay on your device. Compression starts automatically.

3

Download for submission

Upload the compressed PDF to the online form.

100% local processing · Files never leave your device

Questions

FAQ

Privacy, quality, and what to expect from local compression.

What documents can I compress?

Scanned certificates, bank statements, photo transcripts, and other image-based supporting PDFs.

Is processing private?

Yes. SizePDF is 100% local and does not upload your files.

Which size should I pick?

Follow the portal. 500KB and 1MB are common; some forms require 200KB.

Will quality stay readable?

Start with Balanced or Higher clarity. Use Smaller file only if you must hit a tight limit.