PDF Tools tool
Compress PDF
Run a first-pass browser-side PDF optimization to reduce file size when possible.
Compress PDF files online to reduce file size for sharing, email, and upload limits with a simple browser-based workflow.
Original
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Optimized
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Saved
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Upload a PDF to run a first-pass browser-side optimization.
Why people use this tool
Compress PDF gives you a quick first-pass way to reduce document size when a file is too heavy for email, uploads, or simple document handoff.
- Reduce PDF size before uploading to a portal with strict limits.
- Make large attachments easier to send through email or chat.
- Prepare lighter document files for storage and repeated sharing.
How to use it
- 1Upload the PDF you want to optimize.
- 2Run the browser-side compression workflow and wait for the result.
- 3Download the new file and compare it against the original size.
FAQ
Helpful answersWhen should I compress a PDF?
Compress a PDF when the file is too large for email, upload limits, storage preferences, or faster sharing between teammates and clients.
Will every PDF shrink by the same amount?
No. Compression results depend on the original file structure, embedded images, and how much unnecessary weight exists in the source document.
Is browser-side PDF compression good for quick workflows?
Yes. For lightweight optimization and day-to-day use, a browser-side pass is often enough before reaching for heavier desktop or server tools.