Compress PDF to 100KB
Free, private, in-browser. No upload, no sign-up, no watermark.
Need a different size?
Files are processed in your browser and never uploaded.
Many government exam portals (UPSC, SSC, banking, and state recruitment forms) cap document uploads at 100KB. This tool shrinks your PDF to fit that exact limit — entirely inside your browser, so your documents never leave your device. Set the target, and it automatically lowers image resolution and quality until your file is just under 100KB while staying readable. Unlike vague "low/medium/high" compressors, it targets the 100KB number that the form actually demands, so you avoid the frustrating loop of uploading a file that gets rejected for being a few kilobytes too large. It works equally well for a single signature scan, a passport-size photo saved as PDF, or a short multi-page application, and it never adds a watermark, asks you to register, or limits how many times you can run it.
How it works
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Select your PDF
Choose the file you want to shrink. It loads directly in your browser.
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Compress in-browser
We lower image resolution and quality until it hits the target size.
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Download the result
Save the smaller PDF. Nothing is ever uploaded to a server.
FAQ
Will the text still be readable at 100KB?
Yes. The tool keeps the largest quality that still fits under 100KB. For scanned/image PDFs the result stays legible; very dense color scans may look softer.
Is my file uploaded to a server?
No. Compression runs 100% in your browser using your device. Nothing is uploaded, stored, or seen by anyone.
Why does a government form require 100KB?
Upload portals limit file size to save storage and bandwidth. 100KB is a common cap for ID photos and signed form scans.
Learn more: How to compress a PDF for an online form