Compress PDF to 500KB
Get your PDF under 500KB with the best quality that fits. Handy for email attachments and portals with a 500KB limit. Your file never leaves your device.
Drag & drop a PDF file here
or click to browse
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PDF Compressed Successfully!
Your compressed PDF is ready for download.
Your files stay private
All processing happens right here in your browser. Your PDFs are never uploaded to any server.
How to compress PDF to 500KB
- Drop your PDF onto the page. The target is already set to 500KB.
- Click Compress. The tool tries several quality levels and keeps the best one under 500KB.
- Download the result and check it before you submit it.
Frequently asked questions
What if my PDF can't get under 500KB?
Long or image-heavy documents sometimes can't fit without becoming unreadable. The tool will tell you and give you the smallest version. Splitting the PDF into parts with Split PDF usually solves it.
Will the text still be readable?
The tool always picks the highest quality that fits, so the result is as clear as the size limit allows. Text becomes part of an image, so it can't be selected or searched.
Are my files uploaded to a server?
No. PDF Private runs entirely in your web browser. Your file is read into your device's memory, processed by code running on your device, and saved straight back to your downloads. It never travels over the internet, so we never see it. You can even disconnect from the internet after the page loads and the tool still works.
Is it really free?
Yes. There is no sign-up, no watermark, no daily limit and no paid tier. Because your device does the work, there are no server costs to pass on.