Compress PDF Free
Compress your PDF files free with BossPDF — the fastest PDF app for iPhone and iPad.
- Shrink PDF size without losing quality
- Four compression levels to choose from
- No watermarks, no hidden fees — try every feature free
To compress PDF files free, open BossPDF on your device, select your files, and tap Compress. The entire process takes seconds and works right from your phone. No account needed.
How to compress pdf free
- 1
Open BossPDF
Launch the app and tap "Compress" from the home screen.
- 2
Select your PDF
Choose one or more PDFs from Files or any app.
- 3
Choose compression level
Pick Light, Medium, High, or Maximum depending on your needs.
- 4
Tap Compress
Hit compress and watch the file size drop in seconds.
- 5
Save or share
Save the smaller file or share it directly via email or messaging.
Why this matters
You need to compress a PDF, but every tool you find wants a subscription just to do one thing. You shouldn't have to pay before you even know if the tool works for you.
Why BossPDF
- Four compression levels: Light, Medium, High, Maximum
- Batch compress multiple PDFs at once
- Preview quality before saving
- All processing happens on your device — files stay private
- Fast compression even for large documents
How people use BossPDF
Shrinking a thesis PDF to meet the university's upload size limit.
Compressing a portfolio PDF to email to a potential client.
Reducing presentation size to share on Slack without hitting limits.
Getting a resume PDF under 1MB for an online application portal.
Frequently asked questions
Is BossPDF free to compress PDF files free?
Yes, you can try every feature in BossPDF for free. Download from the App Store and start compressing PDFs immediately — no account or credit card needed.
Can I compress multiple PDF files free?
Absolutely. BossPDF supports batch processing so you can compress multiple files at once. Select all the files you need and process them in a single tap.
Does BossPDF compress PDFs free without uploading my files?
Yes. BossPDF processes everything on your device. Your files are never uploaded to any server, making it completely private and secure.
What's the maximum file size I can compress with BossPDF?
BossPDF handles large files efficiently. There's no hard file size limit — even documents with hundreds of pages process quickly on your device.
Fast. Simple. Done.
Stop fighting with PDF tools. Download BossPDF and get it done in seconds.
Download on App Store