Free PDF Compressor Online Reduce PDF File Size
Free PDF compressor. Reduce PDF file size for email and storage — processed in your browser, nothing uploaded.
Free PDF Tool
Compress PDF.
Smaller File. Same Quality.
Reduce PDF file size for email attachments and storage. All processing in your browser — nothing uploaded.
No sign-up
100% free
Files never uploaded
Works on iPhone
PDF Compressor
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Drop your file here
or click to browse
PDF only · Max 100MB · Never uploaded to any server
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Processing...0%
Something went wrong. Please try a different file.
✅
Done!
Your file is ready
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100% private
Processed in your browser only
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Instant
No waiting, no queue, no server
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Auto deleted
Wiped from memory on download
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Works everywhere
iPhone, Android, any browser
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More from Kaeltripton — UK Finance Guides
Free PDF Compressor — Reduce File Size Without Uploading
Large PDF files exceed email limits, slow uploads and waste storage. Kaeltripton's compressor reduces file size by removing redundant data and optimising internal structure — entirely in your browser.
How much can a PDF compress?
Text-heavy PDFs see 10–30% reduction. PDFs with high-resolution images can shrink 50–80%.
Common uses
- Reducing a PDF to fit within an email attachment limit
- Compressing scanned documents before uploading to a portal
- Reducing portfolio or presentation PDFs for sharing
Frequently asked questions
Is the PDF compressor free?+
Yes — 100% free, no sign-up, no email, no payment.
Are my files safe?+
All processing is local in your browser. Nothing is uploaded.
How much will my PDF shrink?+
Image-heavy PDFs typically compress 40–70%. Text-only PDFs see smaller reductions.
Will compression reduce quality?+
Text quality is unaffected. Images may be slightly reduced depending on the original.
Is there a file size limit?+
Up to 100MB works on most devices.
