How-to guide

How to crop a PDF

Trim unwanted white margins from a PDF in seconds. Auto Crop detects the content area on every page and removes the surrounding whitespace — handy for cleaning up scans, screenshots, or pages exported from another tool.

2 min read
  1. 1

    Step 1 — Open the Crop tool

    Open the Crop tool. You'll see the upload screen titled "Crop PDF".

    PDFly Crop tool upload screen, ready to receive a PDF whose margins you want to trim
  2. 2

    Step 2 — Upload your PDF

    Click "Choose PDF File" and pick the PDF you want to trim, or drag it straight onto the page. Any PDF works — scans, exports, screenshots saved as PDF.

    Choose Files button highlighted on PDFly's Crop upload screen for selecting the PDF whose margins you want to trim
  3. 3

    Step 3 — Pick the Auto Crop mode

    In the sidebar, pick a crop mode. "Auto Crop" auto-detects the content area on every page and trims the surrounding white margins — that's the right choice for cleaning up scans and exports.

    PDFly Crop tool with the uploaded PDF visible and the Auto Crop mode selected in the sidebar to detect content and trim margins automatically
  4. 4

    Step 4 — Crop and download

    Click "Crop PDF" to apply the crop, then "Download" to save your trimmed PDF. The file downloads with the same name as your original.

    PDFly Crop tool showing the trimmed PDF preview after applying Auto Crop, with the Download button ready to save the cropped file

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