Compress PDF to 1MB
Shrink your PDF under 1MB automatically. Free, no signup, and your file never leaves your browser — perfect for upload limits on portals and forms.
Drop your PDF here
or click to choose a file — no size limit, no signup
🔒 Files never leave your browser — all processing happens locally.
How it works
- Drop your PDF into the box above.
- The tool re-compresses images in several passes until the file is under 1MB.
- Download the compressed PDF.
Frequently asked questions
How do I compress a PDF to 1MB?
Drop your file above. The tool automatically adjusts image resolution and JPEG quality over several passes until the result is under 1MB — no manual quality sliders.
Is my PDF uploaded to a server?
No. Everything runs inside your browser. You can open your browser developer tools and confirm that no network request carries your file.
Will the text stay selectable?
The tool first shrinks only the embedded images, which keeps text selectable. If the target is very small, it falls back to converting pages to images and shows a warning when that happens.
Is there a file size limit?
No hard limit. Processing is local, so the only limit is your device memory.
What if my PDF cannot reach 1MB?
The tool returns the smallest file it could produce and tells you the final size. Very long documents may not fit under 1MB at readable quality.