Compress a PDF to 500 KB
Fit a PDF under a 500 KB upload limit. Photos and scans inside are re-saved first so text stays selectable; only if that isn't enough are pages turned into images.
- Runs on your device
- No sign-up
- Free, no watermark
This page opens the PDF Compressor with the settings for this task. You can change any of them above.
Guide: How to Compress PDF Files Online Without Losing Quality
How to use the Compress PDF to 500 KB
- 01Drop one or more PDFs into the box, or click to choose them.
- 02The target is already 500 KB. Compression starts straight away.
- 03Check whether each file fits, then download it, or all of them as a ZIP.
Good to know
Runs on your device
Your PDFs are re-saved by your browser. Nothing is uploaded.
Text kept when possible
If the file fits by shrinking its photos and scans, text, links and form fields are left as they are.
Honest result
Each file shows whether it got under 500 KB. If it can't, you get the smallest size reached.
Frequently asked questions
Are my PDFs uploaded?
No. Everything runs in your browser and your files never leave your device.
Will the text still be selectable?
Yes, if the file fits under 500 KB by shrinking its images. If not, every page becomes a JPG image; text can then no longer be selected or searched, and the file is marked "pages became images".
What if it can't get under the limit?
A long or detailed document may not fit. You then see the smallest size reached and can download it, or split the PDF or remove pages first.
How is a KB counted?
As 1,000 bytes, so the file also passes portals that count a KB as 1,024 bytes.
Can I choose another size?
Yes. Pick 100 KB, 1 MB or 2 MB under Target size, or type your own limit.