Compress PDF to 500KB
For the strictest limits — old portals, small email attachments, tiny upload caps.
No upload No signup Works in browser Free
Drop your file here
or click to browse — nothing is uploaded
How to use
- 1Drop your PDF — 500KB is pre-selected as the target.
- 2Click "Compress".
- 3Download and use it wherever it's needed.
Compress PDF to 500KB — why it works this way
500KB is a tight target usually only reachable by rendering each page as a smaller, more heavily compressed image and rebuilding the PDF from those — this works best for short, simple, or scanned documents. Every attempt happens locally in your browser, so nothing is uploaded to find the right setting.
Is my file uploaded? No. Everything happens locally in your browser using the Canvas/File APIs — your file is never sent anywhere.
FAQs
Is my PDF uploaded anywhere first?+
No — compression happens entirely in your browser.
Will this always reach exactly 500KB?+
It gets as close as possible while staying under 500KB and keeping pages readable. Long or image-heavy PDFs may not compress that far without becoming hard to read, and the tool tells you if it couldn't quite hit the target.
Will text still be selectable?+
No — pages are converted to images to shrink them, so text is no longer selectable or searchable in the output.
What if 500KB is too tight?+
Try the 1MB or 2MB targets instead.