Compress PDF Files
Reduce PDF file size while maintaining quality. Choose from multiple compression levels for the perfect balance between quality and size.
Compress PDF to a specific size
About Compress PDF
Confileo's Compress PDF tool reduces PDF file size dramatically while keeping it readable and shareable. Everything runs in your browser, free and without signup, and your files are deleted automatically after processing.
Large PDF files are a daily headache — email attachments bounce back, upload forms reject them, and they fill up storage. Most of that weight comes from high-resolution images and scanned pages, not the text itself.
Confileo's Compress PDF tool targets exactly that: it optimises the heavy images while keeping the text crisp and searchable, so a bloated file can drop by 50–90% without looking worse. Pick a compression level to balance size and quality, and download a version light enough to email, upload or store.
Quick facts
- Price
- Free — no paywall
- Signup
- Not required
- Max file size
- Up to 100 MB per file
- Your files
- Deleted automatically after processing
- Works on
- Any browser — desktop, tablet, mobile
- Watermark
- None on your output
How to use Compress PDF
- 1Upload the PDF you need to shrink.
- 2Pick a compression level that balances size and quality.
- 3Download the smaller PDF, ready to email or upload.
Why use Confileo
- ✓100% free with no daily limits, watermarks or hidden paywalls.
- ✓No signup or account required — start using it instantly.
- ✓Your files are processed securely and deleted automatically for full privacy.
- ✓Works in any browser on desktop, tablet and mobile — nothing to install.
- ✓Fast processing built to handle real, everyday document workloads.
Compress PDF — Frequently asked questions
How much smaller will my PDF get?
Image-heavy or scanned PDFs often drop by 50–90%. Text-only files shrink less because they are already light. The result depends on what is inside the file.
Will the text stay sharp after compression?
Yes. Text stays crisp and searchable; compression mainly optimises the heavy images that bloat the file.
How do I compress a large PDF to email it or share on WhatsApp?
Email often rejects large attachments. Upload your file, pick a higher compression level, and you get a much lighter copy that sends easily via Gmail, Outlook or WhatsApp.
Can I compress a PDF to under 1 MB?
In most cases yes. The higher the compression level, the smaller the result; scanned, image-heavy PDFs shrink the most.
Does compressing a PDF delete pages or content?
No. All pages and content stay intact; the tool only reduces the data size — mainly images — without removing anything.
What is the largest PDF I can compress?
You can compress files up to 100 MB at once, which covers most documents, books and scanned presentations.
How do I compress a PDF to an exact size like 100KB, 500KB or 1MB?
Use our dedicated target-size pages — Compress PDF to 100KB, 200KB, 500KB, 1MB or 2MB — where the right level is pre-set so you hit the size you need in one click.
Why is my PDF file so large in the first place?
Most of the weight comes from high-resolution images and scanned pages, not the text. Compression optimises exactly those, so image-heavy files shrink the most.
Can I compress a scanned or image-heavy PDF?
Yes — and those usually shrink the most, since the size lives in the images. The text stays readable while the file gets much lighter.
How do I keep the best quality while reducing size?
Pick a lower compression level for a balance of size and clarity, or the strongest level when the smallest file matters most.
Is this tool really free?
Yes. Every Confileo tool is free to use with no daily caps, no watermark on your output and no credit card required.
Do I need to create an account?
No. You can use the tool straight away without signing up or logging in.
Are my files safe and private?
Yes. Your files are processed for the task you requested and then deleted automatically — they are never shared or kept.
Does it work on my phone?
Yes. The tool runs in any modern browser, so it works the same on desktop, tablet and mobile with nothing to install.