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How to crop the margins off a PDF

Trim a set amount off the top, right, bottom and left of every page, to remove wide margins or scanner edges. It runs in your browser.

Updated . Tested step by step on this tool.

Cropping trims a fixed amount off the edges of every page in a PDF. It is the fix for a scan with too much border, a document with unusually wide margins, or a printed page that needs its edges tidied up before sharing.

What you need

  • One PDF file, up to 100 MB.
  • An idea of how much to trim, in points (72 points to an inch), for each side.

How to crop a PDF, step by step

  1. Open Crop PDF and select Select files, or drag your PDF onto the upload area.
    The Crop PDF tool, ready for your file.
    The Crop PDF tool, ready for your file.
  2. Set how much to take off each side. Drag the Top, Right, Bottom and Left sliders. A line below them totals how much width and height will be removed. Select Reset to zero to start over.
    Drag each side's slider to set how many points to trim from that edge.
    Drag each side's slider to set how many points to trim from that edge.
  3. Select Crop PDF.
  4. Download the result. When you see Processing complete, select Download to save the cropped file.
    The cropped file, with the sliders' margins taken off every page.
    The cropped file, with the sliders' margins taken off every page.

Credits: cropping uses 1 credit, which your free daily credits cover. You get 10 free credits a day, or 25 with a free account.

What cropping actually does

Cropping sets the visible area of each page to a smaller rectangle inside the original page, rather than resizing the page itself or deleting content. Most PDF viewers and printers display and print only what is inside that area, so the result behaves like a smaller page. If you need the physical page dimensions themselves to change, use Resize PDF instead.

Tips for a clean crop

  • Start small. Crop a modest amount, check the result, and run again if you need more, rather than guessing a large number up front.
  • Uneven scan edges? Set a larger value on just the affected side rather than cropping all four sides equally.
  • Cropped pages look small when printed? Pair this with Resize PDF to also set the page to a standard size afterward.
  • Sideways content instead of wide margins? That is an orientation problem, not a margin problem; use Rotate PDF instead.

Frequently asked questions

How is cropping measured?

In points, where 72 points equal one inch. Each side has its own slider, from 0 to 150 points, and a line under the sliders shows the total width and height that will be removed.

Does cropping delete the trimmed part of the page permanently?

The trimmed area is hidden from view rather than physically removed from the underlying page data. Most PDF viewers and printers only show what is inside the crop area, so it displays and prints as cropped.

Can I crop each side by a different amount?

Yes. The top, right, bottom and left sliders are independent, so you can take more off one side than another, for example to remove a scanner's shadow from just one edge.

What happens if I set the margins too large for the page?

The sliders go up to 150 points per side, which is well within a US Letter or A4 page. On a much smaller custom page size, setting large margins on opposite sides can ask for less content area than the page has, so keep an eye on the summary line below the sliders and check your result.

Can I undo a crop?

Select Reset to zero to clear all four sliders before running the tool. Once you have downloaded a cropped file, load the original file again to start over.