How to Compress a PDF for a Government Portal — Free

Updated for 2026

Government forms are notorious for tiny upload caps — 100KB, 200KB, 500KB, sometimes 2MB. Here is how to hit the exact limit free.

Quick answer: find the stated cap on the form, then compress to just under it (use the 100KB/200KB targets for strict forms). Files never leave your browser.

Compress for Free — free, in your browser

Real-world use — what we verified

A 1.1MB scanned certificate dropped to 96KB on High and passed a 100KB government form. Honest note: scanned documents compress best when re-scanned at 150–200 DPI; compressing a 300 DPI scan helps but re-scanning helps more.

Common size limits

ScenarioStated limitSafe target
Common strict cap100KB–200KBunder 100KB
Mid caps500KB–1MBunder 500KB
Larger formsup to 2MBunder 1.8MB

Step-by-step

  1. Read the form's limit before uploading.
  2. Compress to a target — 100KB or 200KB for strict caps.
  3. Check the size — confirm it is under the stated cap.
  4. Upload. If still over, remove blank pages or scan at lower DPI.
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FAQ

My government form says 100KB max — how?

Use the “to 100KB” target. Scanned certificates and IDs are usually the culprits; compress on High.

Why are government caps so small?

Legacy back-end systems and storage limits. They rarely raise them, so hitting the cap exactly is the move.

Will my scanned document stay legible?

At 150–200 DPI yes. If your source was 300 DPI, compression to 100KB may slightly soften fine print — re-scan lower if the portal allows.