Does PDF cropping permanently erase hidden content?

No. Cropping updates the PDF CropBox and MediaBox viewport boundaries so viewers and printers only show the cropped area, but off-box vector/text objects remain in the file stream. Do not use cropping for security redaction.

Does cropping reduce text sharpness?

No. Modifying page box coordinates is a purely structural vector operation with zero re-encoding or quality loss.

Visual PDF Cropper

Preview PDF pages, visually adjust top, bottom, left, and right crop margins across all or individual pages, and export a cleanly cropped PDF.

Drop a PDF file to visually crop page margins

Preview crop boundaries · Trim headers, footers, or whitespace on all or individual pages

Zero server upload · Files never leave your device

CropBox vs. Redaction Notice: PDF cropping updates the page CropBox and MediaBox viewport boundaries so viewers and printers display only the cropped region while preserving sharp vector text. Off-box objects remain in the underlying stream—do not use page cropping to redact confidential secrets.

CROP MARGIN CONTROLS

Quick presets

Apply crop to

Top inset (%)

Bottom inset (%)

Left inset (%)

Right inset (%)

VISUAL CROP PREVIEW & EXPORT

Load a PDF above to preview page crop guides and export the cropped document.

Loading tool workspace…

Method and assumptions

Each target page's MediaBox is read via pdf-lib and inset by the specified top, right, bottom, and left percentages to compute new [x, y, width, height] rectangle coordinates, which are written to both CropBox and MediaBox.

Common mistakes and edge cases

Updating CropBox and MediaBox changes the visible and printable viewport boundary without deleting off-page vector/text operators from the underlying PDF stream. Do not rely on PDF page cropping to permanently redact confidential text.

How to use

Drop a PDF file into the workspace (or load the 3-page sample PDF).
Choose a quick margin preset or enter custom Top, Bottom, Left, and Right inset percentages.
Select whether to apply the crop to All pages or a specific page while inspecting the live emerald crop boundary.
Click Apply crop & update PDF and download the cropped document.

Example

Select the 'Trim Header/Footer (8%)' preset on a 612×792 pt report: top and bottom insets of 8% reduce page height to 665 pt, removing running headers and footers from the visible page box.

Frequently asked questions

Does PDF cropping permanently erase hidden content?: No. Cropping updates the PDF CropBox and MediaBox viewport boundaries so viewers and printers only show the cropped area, but off-box vector/text objects remain in the file stream. Do not use cropping for security redaction.
Does cropping reduce text sharpness?: No. Modifying page box coordinates is a purely structural vector operation with zero re-encoding or quality loss.

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This tool is provided for general informational and workflow purposes only. It does not constitute financial, investment, tax, or professional advice. All calculations run in your browser; no input data is transmitted or stored.