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Crop PDF Online

Choose the visible area to keep, preview the page boundaries, and apply the supported crop settings to the PDF. Cropping changes page boundaries; it should not be treated as secure redaction.

or drop one PDF here

Up to 50 MiB and 500 pages

Processing stays in this browser

檔案會留在您的瀏覽器中 不上傳檔案 不需要帳戶

How to Crop PDF Pages Online

  1. Choose a supported PDF.
  2. Adjust the available crop boundary or margin controls.
  3. Preview representative pages to make sure important content remains visible.
  4. Apply the crop.
  5. Download and reopen the cropped PDF.

Crop PDF questions

Can I preview the crop before downloading?

Yes. Use the live page preview and crop box before applying the crop.

Can different PDF pages use different crop areas?

Yes. Choose Current page only for a per-page crop, or apply the current crop to all pages.

Can I enter exact crop margins?

Yes. Enter top, right, bottom, and left percentages from 0% to 90% in 0.1% steps, or adjust the crop box visually.

Does cropping reduce PDF quality?

No image recompression is applied. The tool changes PDF CropBox values and keeps the underlying page content.

Will cropping permanently remove sensitive information?

No. Cropping changes visible page boundaries but leaves underlying page objects in the PDF. Use Redact PDF for sensitive information.

Are my files uploaded?

No. Selected PDF contents are processed locally in this browser.

還需要處理其他文件工作？ 整理 PDF.

關於此工具

Adjust the visible area of PDF pages

Crop PDF changes page boundaries so unwanted outer areas are no longer shown in normal viewing. It is intended for page presentation, not removal of sensitive page content.

適合用於

  • Remove scanner borders or excess white space.
  • Create consistent visible margins across pages with similar layout.
  • Focus the visible page area on the main document content.

使用須知

  • Apply one crop to all pages or choose Current page only to store a different crop for each page.
  • Cropping may alter page boxes without deleting underlying objects.
  • Do not describe crop as permanent secure removal of hidden content.
Practical guidance

Crop PDF page margins and unwanted outer areas

Crop PDF changes the visible page area to remove scanner borders, excess white space, or unwanted content near the edges. Choose percentage-based crop boundaries, inspect the preview, and apply the same crop settings across the document.

Crop PDF pages online with a preview

Adjust top, right, bottom, and left boundaries while checking that headings, page numbers, signatures, and other important content remain visible.

Apply consistent crop margins

Apply shared percentages to all pages or choose Current page only for a per-page crop. Margins start at zero; untouched pages retain their original boxes.

Do not use cropping as secure redaction

Cropping changes the visible page boxes and may not securely remove hidden content. Use Redact PDF for sensitive selectable text and verify the sharing copy.

Questions people ask about this task

Can I crop PDF pages online for free?

Yes. Set the visible boundaries and download a cropped copy without registration.

Can I use a different crop for each page?

Yes. Choose Current page only to store a separate crop for each page, or apply the current percentages to all pages.

Will cropping permanently remove sensitive information?

Do not rely on cropping for redaction. Hidden or recoverable content can remain; use an appropriate redaction workflow instead.