Compress PDF
Compress PDF files quickly in your browser.
Add a file to begin
Drop an image here, browse from your device, or paste from the clipboard.
Preparing your file…
Working on your device…
Done
Your result is ready to download.
Partial success
Some files completed. Check the results below for details.
Couldn’t finish
Something went wrong. Try again or choose a different file.
Unsupported file
That file type or size isn’t accepted by this tool. Check the accepted formats above the drop zone.
You’re offline
Reconnect when you can. On-device tools may still finish if the page is already loaded.
Drop your file here
One file at a time. Or use Browse / Paste above.
Accepted: .pdf,application/pdf
Max 24 MB.
Results
About this tool
Reduce PDF file size in your browser. Choose balanced, maximum compression, best quality, or a size target. Processing stays on your device.
Supported formats
Accepts PDF files. Password-protected PDFs are rejected.
Input
- PDF (pdf)
Output
- PDF (pdf)
How it works
- Add your PDF (browse or drop).
- Pick a compression mode if shown.
- Download the smaller PDF.
Common uses
- Email attachments — Shrink PDFs before sending so they fit mailbox limits.
- Forms and uploads — Meet government or portal size caps without a desktop app.
- Messaging apps — Prepare PDFs for WhatsApp and similar upload limits.
Limitations
- Pages are re-encoded as images — selectable text and vector fidelity may be reduced.
- Very large page counts may be capped to protect browser memory.
- Password-protected PDFs are not supported.
- Already-optimized PDFs may not shrink meaningfully.
FAQ
No. Compress PDF compresses on your device in the browser. Your PDF file is not uploaded to Konvert for processing.
Accepts PDF files. Password-protected PDFs are rejected. Other formats are rejected so you do not get a misleading result.
Compress PDF re-encodes PDF pages as images for size reduction, so selectable text may be reduced.
For Compress PDF: Pages are re-encoded as images — selectable text and vector fidelity may be reduced. Upload size is capped at about 25 MB per file.
Unlock password protection, try a smaller PDF or fewer pages, pick a less aggressive target, or use Maximum compression on Compress PDF before retrying.
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