Compress PDF to a Target Size

SlimPDF is a free PDF compressor that shrinks a PDF to a size you choose, such as 1MB, 500KB or 200KB. It compresses the images inside the file and leaves text sharp. Up to 20 files at a time are free, and everything runs in your browser without uploading.

Email attachments and application portals often cap files at 1MB or less. Pick a target size and we compress images inside your PDF until it fits, entirely in your browser.

✓ 100% Free🔒 Private, in-browserKeeps quality

Choose PDF filesor drag & drop · up to 20 files per job (free)🔒 Compressed on your device. Nothing is uploaded.

Compression level

Good balance

Target size

Convert pages to images (maximum compression for scans; text will no longer be selectable or searchable)

Popular target sizes

Compress PDF to 1MBGet a PDF under 1MB for job portals, school submissions and online forms. Images are compressed, text stays sharp. Free, no upload.Compress PDF to 500KBReduce scanned documents and application PDFs to under 500KB. Free, private, done in your browser.Compress PDF to 200KBSqueeze a PDF under 200KB for strict exam, scholarship and government portals. Free and private, no upload.Compress PDF for EmailMake PDFs small enough to email. Fit Gmail and Outlook attachment limits without uploading your file anywhere.

Frequently asked questions

Will text stay sharp?

Text is untouched; only images are compressed.

What if it can't reach the target?

We show the smallest size possible.

Are my files uploaded?

No.