Compress PDF
pdf-lib rewrite in this tab. Text PDFs often barely shrink. Files are not uploaded.
Select PDF file to Compress
Drag and drop a PDF file here, or click to browse. Processing is fully secured inside your browser.
Compress PDF
Reduce PDF file size quickly in your browser while preserving text clarity and document formatting.
Run a pass and read the real %
Drop a .pdf. There is no coded size reject.
Pick a preset if you want. Treat the % bar as a guess.
Click Optimize. Wait for the real bytes on the result card.
If the card says already optimized, stop. Another pass will not help a text file.
Download only if the new size actually fits the portal (Income Tax, GST, college).
Files people try to get under a portal cap
- ITR-V or Form 16 that the e-filing site rejects for size.
- GSTR-1 / GST invoice pack for email to the CA.
- Scanned SSC / college form that must stay under 1 MB.
- Rent agreement photo-PDF for a WhatsApp send.
What actually gets smaller
This page opens the PDF with pdf-lib and saves it again. High / Maximum turn on object streams. That can trim some bulk. It is not a WASM “optimizer”, and it does not strip fonts or rewrite images.
I compressed a college notice (all text) and saved about 2%. The yellow note on the result screen was right: already tight. A phone-scan marksheet moved more.
| Requirement | Specification |
|---|---|
| Input | .pdf (no coded MB cap) |
| Engine | pdf-lib rewrite in this tab |
| Presets | Object-stream on/off — not image quality |
| Uploaded? | No. Stays in this browser tab. |
| Password PDF | Unlock first |
When the size barely moves
If someone promised 40–80% every time, that was the estimate bar talking, not the encoder.
- •Text-only GSTR working paper or a typed circular: often 0–10%. Use that as a pass, not a miracle.
- •Scanned ITR pages / photo-heavy forms: more room, still not a guaranteed 80%.
- •Font, image, and flatten toggles on this page are not wired into the save path. Do not trust them yet.
- •Password PDF: unlock first. The toast will say password or corrupt.
Where the file is processed
Processing happens locally in your browser. Files are not uploaded to any server.
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Parent Category
PDF ToolsClient-Side Privacy Guarantee
All operations execute locally inside your web browser. Documents are not uploaded to remote servers or stored in any database. Free with no account required.