Crop PDF Margins

Crop PDF Margins

Trim white margins from every page to make text larger on screen and on e-readers. Set how much to cut from each side.

The same percentages apply to all pages. Left + right together, and top + bottom together, must stay below 90%.

Crop PDF Margins trims away excess white space around the edges of every page. Many PDFs — especially scanned books, journal articles, and print-ready files — carry wide margins that made sense on paper but waste screen space. On a phone or e-reader, those margins shrink the actual text and force constant zooming. Cropping them back makes the content fill the screen, so pages read larger and more comfortably without changing the document itself.

You set four percentages: how much to remove from the left, right, top, and bottom of each page. The same values apply to the whole document, which suits files whose pages share one layout, like a scanned book or a report. Cropping here works by redefining the visible page box rather than deleting content, and the values are written into both the crop box and the media box so viewers and printers respect the new edges consistently. Starting with modest values, around 5 to 10 percent per side, is wise; you can always crop the original again more aggressively.

Your original file is never altered, and everything runs in your browser — your PDF is never uploaded to a server.

How to use

  1. Click the file box and choose the PDF whose margins you want to trim.
  2. Move the four sliders to set the percentage to remove from each side.
  3. Keep left plus right, and top plus bottom, comfortably below 90 percent in total.
  4. Click Crop and Download and save the trimmed copy.
  5. Open the result on the device you read on; if too much or too little was cut, adjust and crop the original again.

Frequently asked questions

Is the cropped content deleted forever?

In the downloaded file the page box is smaller, so viewers show only the cropped area. The tool does not rewrite page content, but you should treat the cropped file as trimmed and keep your original if you may need the full margins.

Can I crop each page differently?

This tool applies one set of percentages to all pages for speed and consistency. It suits documents with a uniform layout. Mixed-layout files may need a full PDF editor for page-by-page control.

Will cropping make my text blurry?

No. Nothing is re-rendered or compressed. The same page content is simply shown in a smaller frame, so text and images stay exactly as sharp as the original.

Is my file uploaded anywhere?

No. Cropping happens entirely in your browser, and your PDF never leaves your device.