Will compression make text blurry?
Text-based PDFs often keep sharp text. Scanned PDFs may lose some image detail at higher compression levels.
Compress PDF
Reduce PDF size for faster sharing.
Downsample scanned pages, reduce image quality, strip metadata, and rebuild optimized PDFs with real before/after sizes.
Compression level
Result preview
Choose a PDF to see compression results.
Action panel
Medium is recommended. Use High for scanned PDFs that need a much smaller size.
Anonymous users can compress one PDF per tool.
Usage is recorded after a successful compression.
Premium users get unlimited optimization plus history.
What this tool does
Compress PDF reduces document size by optimizing images and rebuilding the PDF structure so files are easier to upload, email, and archive.
When to use Compress PDF
- • A scanned report is too large for email or portal upload limits.
- • You need to speed up document sharing in team chats.
- • You want to reduce storage size for repeated PDF workflows.
Why it is useful
- • Smaller files open faster on mobile and lower-bandwidth connections.
- • Reduced size helps avoid failed uploads due to strict attachment limits.
- • You can choose the level that balances quality and file size.
How to use Compress PDF
- 1. Upload one PDF file.
- 2. Pick a compression level based on quality needs.
- 3. Run compression and compare before/after size.
- 4. Download the optimized file when you are happy with the result.
Privacy and safety note
Your file is processed only to complete compression. If you are a premium user and history is enabled in your workflow, processed output may be saved to your account history.
Frequently asked questions
Which compression level should I start with?
Medium is a practical starting point. Use High when the file must be much smaller, especially for scans.
Why does my file size barely change?
Some PDFs are already optimized. In that case, further reduction may be limited without visible quality loss.
Can I compress password-protected PDFs?
Protected PDFs may fail unless they are unlocked before upload.
Does this tool work for invoices and contracts?
Yes. It is commonly used for business documents that need to meet upload limits.