Crop PDF Margins
Trim surrounding white space using automatically detected content boundaries. Adjust the blue crop outline or edge sliders to refine each page's crop.
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Crop White Margins
Open PDF
Click or drop a file
White Tolerance20
Background Color
White
Preview Resolution
Output Resolution
Fine Adjustment Scope
Fine Adjustments (Odd Pages)
Top0
Bottom0
Left0
Right0
📌 Instructions:
1️⃣ Open a PDF to detect each page's content bounds. In the preview, the blue dashed outline shows the crop area.
2️⃣ Adjust the White Tolerance and Background Color to handle scans with different background colors.
3️⃣ Use the top/bottom/left/right sliders to fine-tune the crop amount. Choose "Same for All Pages / Separate Odd/Even Pages / Individual Pages", or directly drag the preview outline to adjust it.
4️⃣ Click "Crop and Save" to trim white margins page by page. Each page is sized to its content.
⚠️ Cropping rasterizes text, so it can no longer be selected or searched. Preview resolution only affects the preview; output resolution determines the downloaded file's quality.
1️⃣ Open a PDF to detect each page's content bounds. In the preview, the blue dashed outline shows the crop area.
2️⃣ Adjust the White Tolerance and Background Color to handle scans with different background colors.
3️⃣ Use the top/bottom/left/right sliders to fine-tune the crop amount. Choose "Same for All Pages / Separate Odd/Even Pages / Individual Pages", or directly drag the preview outline to adjust it.
4️⃣ Click "Crop and Save" to trim white margins page by page. Each page is sized to its content.
⚠️ Cropping rasterizes text, so it can no longer be selected or searched. Preview resolution only affects the preview; output resolution determines the downloaded file's quality.
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● The blue dashed outline is the crop area. Drag the box or any of its four edges to adjust it; the sliders update automatically.
How to use this tool
- Open a PDF and review the automatically detected blue crop outlines.
- Adjust white tolerance and background color to suit the scans.
- Fine-tune the top, bottom, left and right edges for all pages, odd/even pages or individual pages.
- Set output resolution, then click Crop and Save.
Frequently asked questions
Can odd and even pages use different crop settings?
Yes. Choose Separate Odd/Even Pages to maintain different adjustments for each side, or use Individual Pages for independent crops.
Does cropping preserve selectable text?
No. The cropped output is rasterized, so text becomes part of an image. Preview resolution only affects the preview; output resolution controls the saved file.