PDF

Compress PDF

Make a PDF smaller by shrinking its images and clearing out what it does not need. Everything happens in this browser - nothing is uploaded, and nothing leaves your machine.

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How hard to compress Lossless Clears out unused and duplicated data. Nothing visible changes. Balanced Also re-encodes images at up to 2000 px. Hard to tell apart on screen. Strong Images at up to 1200 px and lower quality. Fine for reading, soft when zoomed. Pages as images Every page becomes one picture. Smallest for scans; text stops being selectable.

Most of a large PDF is usually its images, so a file of scans or photos shrinks a lot and a file of plain text very little. A result that comes out no smaller is not used - you get the original back. Password-protected PDFs cannot be compressed.