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Compress PDF

Shrink heavy PDFs with a simple quality setting — compress a whole batch at once, privately in your browser. No upload.

This tool lets you compress a PDF and reduce PDF file size without leaving your browser. Add one file or a whole batch, pick a compression level, and see the size saving on each file before you download. Scanned and image-heavy PDFs often drop by 50 to 80 percent. Everything runs on your device, so nothing is uploaded.

Read the guide: How to Compress a PDF to Reduce File Size

Drop PDFs here

PDF files — processed privately on your device

How it works

  1. 1

    Add PDFs

    Drop in one or many PDFs — scans and image-heavy files shrink the most.

  2. 2

    Pick a level

    Choose how hard to compress. See the size saving on each file instantly.

  3. 3

    Download

    Save one file or the whole batch as a zip. Nothing is uploaded.

Instant & 100% private — nothing is uploaded

Your PDFs are processed instantly on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and no copies kept anywhere.

Frequently asked questions

How does the compression work?
Each page is re-rendered as a high-quality image and rebuilt into a leaner PDF. This shrinks scanned and image-heavy documents dramatically. The trade-off is that text in the output is no longer selectable — it becomes part of the page image.
How much smaller will my PDF get?
It depends on the document, but scanned and photo-heavy PDFs often drop by 50–80%. Text-only PDFs that are already small may not shrink much — we never hand back a file larger than the original.
Can I compress several PDFs at once?
Yes. Add a whole batch, apply one compression level to all of them, and download them together as a zip.

More tools

Merge PDFCombine many PDFs into one — drag to reorder, then download.Split PDFExtract page ranges or delete pages — export to one PDF or a zip.PDF to Image ConverterTurn every PDF page into a JPG or PNG — bulk export to a zip.Protect PDFPassword-protect and set permissions — apply to many PDFs at once.Unlock PDFRemove a known password from many PDFs at once.Sign PDFDraw, type or upload a signature and place it on the page.

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