PDF Compressor
UtilitiesFreeNewReduce PDF file size in your browser. No uploads, completely private.
100% private. All processing happens in your browser. No data is ever sent to any server.
About PDF Compressor
Large PDF files cause problems everywhere — email attachments get rejected, WhatsApp fails to send, and government portals reject files above a size limit. This free PDF compressor reduces file size using structural optimization: removing redundant data, compressing embedded content, and optimizing cross-references — all in your browser with zero server upload.
How to use
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Upload your PDF by dragging it onto the drop zone or clicking to browse.
- 2
Choose a compression level: Maximum (smallest file), Balanced (best quality-to-size ratio), or High Quality (minimal compression).
- 3
Click Compress — the tool processes your PDF entirely in-browser using pdf-lib.
- 4
Preview the before vs after file size and download the compressed file.
Who uses this tool
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Email attachments — most email services reject attachments over 10MB; compress to stay well under.
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Job applications — HR portals and Naukri often limit resume uploads to 1–2MB.
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Government portals — DigiLocker, income tax, GSTN portals have strict file size limits.
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WhatsApp sharing — documents over 100MB cannot be sent; compress first.
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Printing — optimize PDF before sending to a printer to reduce spool time.