Compress PDF
Reduce the file size of a PDF.
Click to upload or drag & drop
Files stay in your browser
About Compress PDF
Reduce the file size of a PDF. Compress PDF runs in your browser — nothing is uploaded, and it's free to use as often as you like.
How to use Compress PDF
- 1
Upload your PDF file using the file picker or drag-and-drop area.
- 2
Configure the options for compress pdf (page range, quality, order, etc.).
- 3
Click the action button and download your processed PDF.
When to use it
- Prepare documents for job applications, school submissions, or contracts.
- Clean up scanned PDFs before archiving or emailing them.
- Reduce PDF size to fit under email or upload limits.
Frequently asked questions
- Is Compress PDF free to use?
- Yes — Compress PDF is completely free with no sign-up, no watermarks, and no hidden limits.
- Does Compress PDF work on mobile?
- Yes. UltraTools.bar is fully responsive and works on phones, tablets, and desktops.
- Is my data private?
- Yes. Compress PDF runs directly in your browser — your files and data are never uploaded to a server.