Compress PDF to 100KB
Need a PDF under 100KB for an upload form? Set 100KB as the target and we compress toward it, keeping the clearest text that still fits — and always show the true final size.
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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 your PDF
Choose the PDF to shrink.
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Set target to 100KB
Enter 100 KB as the target size.
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Compress & download
We compress toward 100KB and show the final size. Files are auto-deleted.
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.
Why 100KB is a common cap
Many application and exam portals cap PDF uploads at 100KB. Text-based PDFs usually reach it comfortably; a heavily scanned, image-rich PDF may land slightly above, because readability has a floor.
Honest about exact sizes
We aim for 100KB, never make the file larger than the original, and show the real result. If an image-heavy file cannot hit 100KB while staying legible, you will see the closest size we achieved.
- Targets ~100KB
- Best readable quality that fits
- Real final size always shown
- Never larger than the original
- Files auto-deleted