Crop PDF Pages Online

Trim unwanted margins, remove white space, and focus PDF pages on the content that matters. Free, fast, and 100% private — runs in your browser.

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Maximum file size: 10MB

Cropping a PDF is the digital version of trimming a printed page with scissors — you remove the unwanted edges so what remains is the part you actually want. The most common reasons: scanned documents that include way too much white space around the actual content, screen-captured PDFs with browser chrome bleeding into the edges, e-books with fat margins that waste screen space on small devices, and academic papers where you want to focus on a single column or figure for a presentation. Dokfo's free PDF cropper lets you set custom crop margins or draw a crop area on any page. Apply the same crop to every page in one shot, or crop pages individually if your document mixes layouts. The result is a tighter, more focused PDF that prints cleaner, reads better on small screens, and uses less storage. Unlike viewer-based cropping that only changes how a PDF displays, Dokfo's crop is permanent — written into the PDF's page-box definitions. The cropped file looks the same to every recipient on every device.

How to Crop a PDF — Step by Step

1

Upload your PDF by clicking the upload area or dragging the file. Dokfo loads it locally and renders an interactive preview of every page.

2

Set the crop margins (top, bottom, left, right in millimeters or inches) or draw a custom crop rectangle on the preview. Choose whether to apply to all pages or selected pages.

3

Click "Crop" to apply. The cropped PDF downloads automatically with the new page boundaries permanently set.

Why Crop PDFs With Dokfo?

Set Custom Margins

Specify exact crop margins in millimeters or inches, or draw a freeform crop rectangle on the page preview. Both modes available — pick whichever is faster for your job.

Apply to All or Selected Pages

Crop every page identically with one operation, or crop pages individually if your document mixes layouts (mixed portrait/landscape, full-page graphics).

Permanent Crop, Not Just Visual

The crop is written into the PDF's page-box definitions, so every viewer sees the cropped version. This is real cropping, not a temporary display setting.

Browser-Based Privacy

Cropping runs locally with pdf-lib. Your PDF never leaves your device, which makes the tool safe for confidential documents like contracts, IDs, or financial reports.

When to Crop a PDF

Trim excessive white margins around scanned documents that wasted scanner real estate.
Crop e-book pages tighter so they display more legibly on phones and tablets without zooming.
Focus on a specific figure, table, or column from an academic paper for inclusion in a presentation.
Remove headers, footers, or page numbers from PDFs before reusing the content elsewhere.
Strip browser chrome or sidebars from screen-captured webpages saved as PDF.

Cropping Stays on Your Device

Dokfo's PDF cropper runs entirely client-side using pdf-lib. Your file is loaded into browser memory, the crop box on each page is updated, and the modified PDF is saved back to disk — without any server round-trip. This makes the tool safe for sensitive documents. Open Developer Tools → Network tab during cropping to confirm zero data transmission.

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Frequently Asked Questions About Cropping PDFs

How do I crop a PDF?

Upload your PDF, set crop margins (top, bottom, left, right) or draw a custom crop rectangle on the page preview, then click crop. The cropped file downloads automatically with the new page boundaries baked in.

Does cropping reduce file size?

Slightly, in most cases. The cropped area's content is hidden from view but typically not deleted from the underlying PDF stream. For maximum size reduction, follow up with Dokfo's Compress PDF tool.

Is the cropped content recoverable?

By default, the underlying content is preserved and could be recovered by un-cropping. For permanent removal of cropped content, use Dokfo's Redact PDF tool to physically delete content outside the crop area.

Can I crop pages individually?

Yes. You can apply the same crop to every page in one shot, or click specific pages to crop them individually. Useful for mixed-orientation documents.

Will cropping reduce quality?

No. Cropping just updates page boundaries — it doesn't re-render or re-encode content. Fonts, images, hyperlinks, and form fields are all preserved exactly.

Can I crop password-protected PDFs?

Remove the password first using Dokfo's Unlock PDF tool. Once unlocked, cropping works normally.

Are my files uploaded?

No. Cropping happens in your browser using pdf-lib. Your PDF never leaves your device.

Will the cropped PDF have a watermark?

Never. Dokfo never adds watermarks to cropped PDFs.