Reduce PDF file sizes by re-compressing embedded images — all inside your browser. No servers, no waiting, no privacy risk.
80%
Typical reduction
0s
Upload time
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Drop your PDF here
or click to browse your files
Choose PDF
Supports PDF files · Works entirely in browser
Image Quality
60%
Selected file
Reading PDF pages…
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How it works: This tool renders each PDF page to a canvas, re-compresses the embedded images at your chosen quality level, and rebuilds the PDF. Best results on image-heavy PDFs (scanned docs, photo books). Text-only PDFs may not reduce significantly.
Why CompressIt PDF
Smart PDF compression.
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100% Private
Your PDF never leaves your device. All processing happens locally in your browser — zero server uploads.
🖼️
Image Re-Compression
Targets embedded images inside the PDF — the main source of bloat in most documents.
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Quality Control
Dial the image quality from 10% to 90% to balance file size against visual fidelity.
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No Waiting
No upload queues, no server load. Processing starts immediately using your device's power.