Is my PDF uploaded to a server?

No. Compression runs entirely in your browser — your file never leaves your device, and there's no watermark or signup.

Why does the text become non-selectable?

To get real size savings in the browser, each page is rendered to an image and re-encoded. That flattens the page, so text can no longer be selected. It works best on scanned or image-heavy PDFs.

What if the file gets bigger?

Some PDFs (especially plain text) are already efficient. If you don't see savings, choose a lower compression level or keep the original.

Can it compress a password-protected PDF?

No. Remove the password first, then compress the unlocked PDF.

Compress PDF

Reduce PDF file size in your browser — pick a compression level and download a smaller file. Best for scanned or image-heavy PDFs. No uploads.

Processed 100% in your browser — nothing you enter here is ever uploaded.

Common use cases

Email a large PDF

Shrink a heavy scan or brochure so it fits under email and upload size limits.

Speed up a scanned document

Reduce the size of image-heavy or scanned PDFs that are slow to open and share.

Save storage

Compress PDFs before archiving them to take up less space on your device or drive.

How to use the Compress PDF

Drop a PDF into the box, or click to browse. It's processed in your browser — nothing is uploaded.

Pick a compression level: Maximum for the smallest file, Recommended for a balance, or Less to keep more quality.

Click "Compress PDF" and watch the progress as each page is re-encoded.

Check the before/after size, then download the smaller PDF.