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Compress a PDF — Free, Browser-Only

Shrink your PDF so it fits in an email or uploads faster. WT-PDF recompresses images to JPEG at a sensible quality level and applies stream compression to text and vector objects. Typical savings: 30–80% depending on how image-heavy the file is.

No signup, no uploads.

Open the editor

How it works

Open wt-pdf.com and drop in your PDF.
Click the Shrink (compress) button in the toolbar.
Pick a compression level — higher compression, smaller file.
Download the compressed file.

What compression does

Image-heavy PDFs benefit most: scanned docs, catalogs, photo-laden reports. Text-only PDFs won't shrink much because text is already efficiently compressed by default.

Quality tradeoff

Higher compression = smaller file = slightly reduced image quality. For screen viewing, aggressive compression is usually fine; for print, pick a gentler level.

FAQ

Does compression lose text clarity?

No. Text and vector graphics are lossless — only raster images are recompressed.

Will scanned PDFs still be readable?

Yes, at the default setting. If OCR was applied, the text layer is preserved.

Can I compare before/after?

After compression, compare file sizes via the download. You can undo with Cmd+Z.