How to remove white margins and scanner borders from PDF

What this workflow helps you do

A scanned PDF normally contains page images rather than ordinary selectable text. This workflow explains where Crop PDF fits and when OCR or a separate image step is required.

Adjust visible page boundaries to hide unnecessary outer whitespace, dark scanner edges, or capture borders.

Plan the task in Crop PDF

Choose the visible area to keep, preview the boundaries, and apply the same percentage crop settings across every page in the PDF.

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.

1. 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.
2. Apply consistent crop margins. The same crop percentages are used on every page. This works best when the source pages share a similar size and layout.
3. 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.

Identify image-only pages before choosing the next step

A scan can look like an ordinary PDF while storing each page as one image. Crop PDF may still handle the page visually, but text search, extraction, editing, and exact-text operations need real text objects or a reviewed OCR layer.

Try selecting a sentence in a reader. If the whole page behaves like one image, plan for OCR where supported and expect to verify recognition errors manually.

1. Check whether text is selectable on several pages.
2. Inspect scan focus, contrast, skew, shadows, and cropped edges.
3. Verify OCR names, dates, numbers, and reading order when OCR is used.

Settings and limitations to check

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? No. The current tool applies the same percentage boundaries to every page in the selected PDF.

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.

1. Use only the settings needed for the required result.
2. Keep the source file available for comparison.
3. Do not rely on an unsupported exact-size, fidelity, or security promise.

Review the completed file

Check page numbers, signatures, handwritten notes, and content close to every edge.

Open the downloaded result in a separate viewer, inspect important pages or details, and repeat the workflow with adjusted settings if the output is not suitable.

1. Confirm the expected file type and page count.
2. Check important text, images, order, and orientation.
3. Share or submit only the reviewed copy.