Compress PDF to 500KB

500 KB is the usual ceiling for a set of documents combined into one PDF. Upload yours and we will fit it under the limit while keeping the pages readable.

Choose your file

Pick from your files or gallery. You can also drag a file here.

Required size

We create the highest-quality file possible within this limit.

Maximum size

Compression rebuilds each page as an image: text may no longer be selectable, form fields and links are flattened, and any existing digital signature (DSC / eSign) becomes invalid. If signature validity matters, do not modify a signed PDF.

Private by design. This tool runs entirely inside your browser — your file is never uploaded to us or to any other server. How this works

No signup
Free to use
Processed in your browser
No watermark

What this tool produces

Target size: 500 KB maximum.
Handles multi-page documents such as merged certificates.
Unlock password-protected files before uploading.
Password-protected or damaged PDFs cannot be processed; remove the password in your PDF viewer first.

How to use this tool

Upload the PDF.
Confirm the 500 KB limit.
Press Compress PDF.
Download the compressed file.

What this tool changes

The document is rebuilt page by page at a controlled quality. Compared with a 200 KB target, 500 KB keeps noticeably more detail — useful when a marksheet has small print.

Common upload problems

I need to merge documents first: Use Merge & Compress PDF to combine your files and hit the size limit in a single step.
Result is far below 500 KB: That is fine — portals only enforce the maximum unless a minimum is stated.

Frequently asked questions

Does page order change?: No. Pages stay in the same order and orientation.
Is there a file limit?: Very large PDFs can exhaust a phone's memory. On a low-end phone, try up to about 20 pages at a time.