Does cropping delete content?

No. Cropping sets a CropBox on each page, which hides content outside the crop area without deleting it. Some PDF readers may still show the hidden content. Use the Redact tool to permanently remove content.

What units are the margins in?

Millimetres (mm). The tool converts them to PDF points internally (1 mm = 2.83 pt).

Can I crop only specific pages?

Currently the crop is applied to all pages equally. Split the PDF first, crop each part, then merge if you need per-page cropping.

Is there a size limit?

Free users can crop PDFs up to 100 MB. Files are deleted from our servers within 2 hours.

Can I crop to a standard paper size like A4 or Letter?

Yes — calculate the margin values needed to reach your target size from your PDF's current page dimensions, then enter them in mm. For example, to trim a US Letter page to A4 width, add about 6mm to the left and right margins.

Crop PDF Pages Free Online — Trim Margins

How to crop PDF pages

1
Upload your PDF
Upload the PDF whose pages you want to crop.
2
Set crop area
Drag the crop handles on the page preview to define the area you want to keep.
3
Apply and download
Click Apply Crop. Download the cropped PDF.

About PDF crop tool

Cropping a PDF removes the outer margins of a page, narrowing the visible area to focus on specific content. This is useful when a scanned document has large blank borders, when a page contains a diagram that you want to isolate, or when you need to remove headers and footers from a PDF that will be reused in a new layout.

DocumentFlipper lets you draw a crop box visually by dragging handles on a page preview. The crop is applied to all pages or to individual pages depending on your preference. Cropping modifies the PDF's crop box property — the content outside the crop area is hidden rather than permanently deleted, which means the file size does not change significantly.

Files are processed securely and deleted within two hours.

Frequently asked questions

Does cropping delete content?: No. Cropping sets a CropBox on each page, which hides content outside the crop area without deleting it. Some PDF readers may still show the hidden content. Use the Redact tool to permanently remove content.
What units are the margins in?: Millimetres (mm). The tool converts them to PDF points internally (1 mm = 2.83 pt).
Can I crop only specific pages?: Currently the crop is applied to all pages equally. Split the PDF first, crop each part, then merge if you need per-page cropping.
Is there a size limit?: Free users can crop PDFs up to 100 MB. Files are deleted from our servers within 2 hours.
Can I crop to a standard paper size like A4 or Letter?: Yes — calculate the margin values needed to reach your target size from your PDF's current page dimensions, then enter them in mm. For example, to trim a US Letter page to A4 width, add about 6mm to the left and right margins.