Compress PDF
Reduce PDF file size to fit email and upload limits, without uploading the file. Free and private, in your browser.
Compress a PDF without uploading it
This tool re-renders each page of your PDF at a chosen resolution and re-compresses it, producing a smaller file you can email or upload. Pick a stronger level for scanned or image-heavy PDFs to save the most space, or a lighter level to keep pages crisp. Everything happens inside your browser — the PDF is never sent to a server. Note: because pages are rasterised, selectable text becomes part of the image; for mostly-text PDFs the savings are smaller.
How to compress a PDF without uploading it
- Drop the PDF you want to shrink into the drop zone.
- Kwiklr optimises the file locally in your browser to reduce its size.
- Check the new, smaller file size.
- Download the compressed PDF. Your document is never uploaded.
Frequently asked questions
Can I compress a PDF without uploading it?
Yes. Kwiklr reduces the file size inside your browser, so sensitive PDFs never go to a server.
How do I get a PDF under an email size limit?
Compress it here and check the resulting size — most PDFs shrink enough to attach to email without issue.
Will compressing ruin the quality?
Kwiklr aims to reduce size while keeping the document readable. Text stays sharp; heavy images are optimised.
Is it free and watermark-free?
Yes. Compression is free, with no watermark and no sign-up.