Compress PDF to 500KB
Shrink a PDF to under 500KB in your browser. Free, and nothing is uploaded.
Need a PDF under 500KB? Choose your file and this free tool compresses every page to fit. This size suits multi-page documents for email attachments, job portals and document uploads. It runs entirely in your browser, so your documents stay private.
Target size
Your compressed PDF will appear here.
How to compress a PDF to 500KB
- 1
Choose your PDF
Pick the PDF from your phone or computer, or drop it onto the box.
- 2
Keep the 500KB target
The target is set to 500KB. You can change it if your portal has a different limit.
- 3
Compress and download
Each page is compressed to fit, then download the smaller PDF.
Tips for a PDF under 500KB
- Several pages fit comfortably at this size while staying sharp.
- Long documents get less space per page, so split very long PDFs if they look soft.
- If the PDF is already under the limit, there's no need to compress it.
Compress to another size
Compressing a photo instead? Use compress image to KB.
Frequently asked questions
Will the PDF be under 500KB?
Yes, unless the document has too many pages for that size. In that case the tool tells you, and you can remove pages or pick a larger target. It counts 1KB as 1000 bytes, so the file passes whichever way a site measures.
Will I still be able to select or search the text?
No. To reach small sizes, each page is saved as a compressed image, so the text becomes part of the picture. It stays readable, but it can't be selected, copied or searched. Keep your original if you need that.
Is my PDF uploaded anywhere?
No. The whole process runs in your browser, and your file never leaves your device. That makes it safe for ID documents and certificates.
Does it work with password-protected PDFs?
No. Remove the password in your PDF app first, then compress the unlocked copy.
Is it free?
Yes, completely free, with no sign-up, no watermark and no daily limit.
Built by AHK Studios
We design and build web and mobile apps for businesses worldwide. If you need a custom tool like this one, or a full app, we'd be glad to help.