Compress PDF

Images are resampled to a target resolution and re-encoded, duplicate embedded fonts are folded into one, page content is trimmed and the file structure is rewritten. Text is never rasterised - it stays sharp and selectable.

Light keeps photo quality for print, Balanced suits screens and office printing, Strong is for e-mail and archives. If a file cannot be made smaller it is returned as is, not made worse.

Nothing is uploaded: the file is opened and processed inside your browser and never leaves your device. Close the tab and it is gone. Even a large file is compressed on your own machine.

Because there was nothing left to take off: a file that is already compressed, or one that is mostly vector drawing and text, has no slack. Then the tool produces no output at all and says "already compressed" - handing back the same bytes under a new name would only look like something happened.

On text and vector art, no: those are rewritten losslessly and never rasterised. Photographs are resampled to the level's target resolution, which is where the saving comes from. We compare pages before and after when testing; at Balanced the difference stays at the edges of images.

Yes. Drop in a .docx, .xlsx or .pptx file or an image (JPG, PNG, WebP...) and it is turned into a PDF in your browser as it arrives - an image onto an A4 page - then handled like any other PDF; nothing is uploaded. The conversion is our own, so the result can differ slightly from Office's own PDF export: a font may be substituted and charts are left out. The file list shows a warning when something couldn't be carried over.