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.
Compactar PDF
Reduza o tamanho dos seus documentos PDF sem perder a qualidade visual. Nosso otimizador local é executado inteiramente na sandbox do seu navegador, mantendo seus documentos 100% seguros.
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.
Common Questions
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Parent Category
PDF FerramentasClient-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.