Compress PDF to 500 KB
Reduce a PDF to 500 KB or less for application forms and upload portals, keeping text sharp.
Runs in your browserFree · no sign-up
How to use Compress PDF to 500 KB
- 1
Choose your PDF
- 2
We optimize it to 500 KB or less
- 3
Download the smaller PDF
Good to know
- Lossless optimization is tried first. Photos are recompressed only as much as needed to fit — text, fonts and vector graphics are never changed.
- Sizes use 1 KB = 1,000 bytes, so the result is accepted whether an upload form counts 1 KB as 1,000 or 1,024 bytes.
- Some targets can't be reached without visible loss (for example, many large photos into 100 KB). The report shows exactly what changed, and you get the smallest result if the target isn't reachable.
Frequently asked questions
Is Compress PDF to 500 KB private?
Yes. This tool runs entirely in your web browser. Your files are processed on your device and are never uploaded to our servers.
Is there a file size limit?
Without an account you can process files up to 50 MB. Paid plans raise the limits.
Do I need to install anything?
No. It works in any modern browser on Windows, macOS, Linux, Android and iOS.