DocFlip
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Free PDF tool

Crop PDF pages online

Trim the visible margins of a PDF with a preview frame. Set top, right, bottom, and left percentages, then apply them to all pages or a selected range.

Private Free No installation

4 simple steps

How it works: Crop PDF pages online

Cropping is useful when scanned pages have wide borders or when a diagram occupies only part of a sheet. DocFlip changes the visible page area without scaling or rasterizing its content.

  1. 1

    Open the PDF

    Choose one document up to 50 MB and 500 pages. Thumbnails show the currently visible page area, including its existing orientation.

  2. 2

    Choose the pages

    Leave the selection empty to crop every page, or select only the pages that need trimming. Other pages stay unchanged.

  3. 3

    Set the four margins

    Enter a percentage from 0 to 45 for each edge. The preview frame marks the area that will remain visible. The same percentages adapt to different page sizes.

  4. 4

    Save the cropped document

    Download the new PDF and check it in your reader. The visible area is smaller, while the original content outside it remains in the file.

DocFlip

When to use this tool

Use cropping to reduce visible whitespace, remove scanner borders from view, or focus a page on a diagram. It is a page-display adjustment, not secure removal of information.

Preview the remaining area

The frame responds to margin settings before export, so you can check that the visible region still includes the content you need.

Apply to selected pages

A selection is useful when only a few scans have oversized borders. An empty selection applies the crop to every page.

Works with rotated pages

Top and left refer to the page as displayed. Existing 90°, 180°, and 270° rotations are taken into account.

Keep text and drawings

The content is not replaced with a screenshot. The saved PDF restricts the visible area; material outside that area is still present.

FAQ

Frequently asked questions

Does cropping delete the hidden content?

No. It changes the visible page boundary. Hidden text or images can remain recoverable. Do not use this tool to remove confidential information.

Can I remove white margins from a PDF?

Yes, manually. Adjust the four edge percentages and review the frame. There is no automatic detection of white margins.

Can I crop only one page?

Yes. Select that thumbnail and set the margins. When nothing is selected, the settings apply to every page.

Does the tool resize pages to A4?

No. It trims the visible area relative to the current page size. It does not scale the content or standardize the document to a paper format.

Will cropping make the PDF much smaller?

Usually not. Content outside the visible area remains stored. Use Compress PDF when file size is the main concern.

Related PDF tools

Continue working on your document with a related tool.

Rotate PDFCorrect page orientation before trimming.Delete PDF pagesRemove entire unwanted pages.Compress PDFOptimize the file size after page editing.