Compress PDF to 500KB
A 500 KB limit can suit a short attachment. Remove unnecessary pages first and try balanced compression before image-only output.
Processed locally in your browser. No file uploads to a server.
File ready
How to use Compress PDF to 500KB
- Upload an unencrypted PDF and set a maximum size.
- Try balanced compression while preserving text and vectors.
- Review the actual result; choose aggressive mode only if needed.
Features
- Never returns a larger file as compression
- Bounded image-resolution and quality passes
- Honest best-result reporting when the limit cannot be reached
Practical tips
Check small text and stamps at 100% zoom. If the best result exceeds 500 KB, split out only the required pages.
Good questions. Simple answers.
Is the size byte-perfect?
No. The requested size is a maximum using 1 KB = 1,024 bytes. A result may be smaller or may not reach the limit.
Can every PDF reach the target?
No. Many text-only or already optimized PDFs cannot shrink enough. The best result is shown with a clear warning.
Are my files uploaded?
No. These tools process files on your device. Download your result before leaving the page; a reset clears the current workspace.