Compress PDF to 100 KB
The 100 KB target is tight but achievable for short, text-only documents. This free browser tool shows you exactly how close your PDF gets and lets you compare before downloading. Documents with many pages or photos may not reach this size, but the tool always gives you the smallest possible result.
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.pdf · Max file size 100 MB · Max files 5
How to Compress PDF to 100 KB
- 1Drop your PDF file into the box above—processing happens on your device, not the cloud.
- 2Select a compression level: light, standard or strong. Strong compression shrinks the most but lowers image quality.
- 3Click Compress and wait a moment for the tool to render and rebuild your PDF.
- 4Review the new file size and download only if you're satisfied with the result.
- Shrink PDFs toward 100 KB directly in your browser
- No uploads—files are processed entirely on your device
- Choose light, standard or strong compression levels
- Compare original and compressed sizes side by side
- Keeps your original if compression would increase file size
Frequently asked questions
Does compression make text unselectable?
Yes. Since each page is re-rendered as an image during compression, the text in the result cannot be selected, copied or searched.
Can any PDF be compressed to exactly 100 KB?
No. A short, text-only document has the best chance, but multi-page scans and PDFs with photos will likely stay larger. The tool shows you the actual result so you can decide.
What if my file gets bigger after compression?
If the compressed version would be larger than the original, the tool keeps your original file unchanged and lets you know.
How many files can I compress at once?
You can compress up to 5 PDFs at once, each up to 100 MB in size.
Compress PDF
Shrink PDF file size with light, standard or strong compression.
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