Compress PDF to 40KB
40KB caps sit between the brutal 20KB fields and the comfortable 100KB ones — enough for one good scanned page or a couple of typed pages. We compress toward your target at the best quality that fits, never make the file larger than the original, and always show the real final size — very image-heavy files may land slightly above tight targets.
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Drag & drop your file here
or click to browse · Up to 15 MB
Select fileAccepted: PDF
Your files are processed temporarily and deleted automatically — there is no general cloud storage. File deletion.
How to compress pdf
Simple steps — no software to install.
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Upload the PDF
The application document to fit.
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Target 40KB
Quality-first compression to the cap.
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Verify the size shown
Then upload with confidence.
Why use our Compress PDF
Secure & private
Files are encrypted in transit and deleted automatically after processing.
Fast results
Optimized processing returns your file in seconds.
Free to start
Core tools are free with daily limits — no install required.
Works anywhere
Runs in your browser on any device, anywhere in the world.
The 40KB budget, spent well
One scanned page at good quality, or two-to-three typed pages, fits a 40KB cap. It is a common limit for ID proofs and supporting documents where the portal wants quality but polices storage.
Two-page strategies
If the requirement is two scanned pages under 40KB, grayscale both and accept working-copy quality — or check whether the portal actually allows one file per page, which doubles your budget.
- Mid-tight cap coverage
- One good scan fits
- True final size shown
- Never larger than input
- Free with fair daily limits