Compress PDF to 100 KB
Shrink a PDF to under 100 KB for government form and exam application uploads, which are often capped at 100 KB. Free and private — pages are re-rendered at progressively lower quality in your browser until the file fits, never uploaded.
To compress a PDF to 100 KB, this tool re-renders the pages at progressively lower quality and resolution until the file drops under 100 KB. Drop your PDF and it targets 100 KB automatically. If 100 KB isn't reachable, it delivers the smallest version it can and tells you the exact size rather than faking success. Processing happens locally in your browser.
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How it works
- Choose one or more PDF files.
- Adjust the quality and resolution sliders.
- Click Compress, then download the smaller PDF — or “Download all” as a .zip for a batch.
Frequently asked questions
How do I compress a PDF to 100 KB?
Load your PDF here and it steps the image quality and resolution down until the file is under 100 KB, then lets you download it. You'll see the final size first.
Will the text stay selectable?
No — to hit a strict size target, pages are re-rendered as images, so text becomes part of the image. Keep the original if you need selectable text.
What if the PDF can't reach 100 KB?
Very long or dense PDFs may not fit 100 KB while staying readable. In that case the tool shows the smallest size it achieved instead of claiming success.
Is my PDF uploaded?
No — compression runs entirely in your browser.