Skip to main content
tolio

Crop PDF

Crop PDF pages online for free — remove unwanted margins by dragging crop handles. Choose from preset aspect ratios, apply to all or specific pages. 100% free, no uploads, fully private. Best free online PDF cropper.

Crop PDF Pages

Drop your PDF file here

or

PDF only · Max 50 MB

50 MB

Max file size

PDF

Format

100% local

Privacy

~5 seconds

Speed

Top / Right / Bottom / Left

Margins

Free forever

Price

Related Tools

Merge PDF

Combine multiple PDF files into a single document online. Merge PDFs in any order, rotate individual pages, and download the combined result — all processed locally in your browser.

merge PDFcombine PDF

Split PDF

Split PDF files into multiple documents online. Extract specific pages by range, split into chunks of N pages each, or export every page as a separate PDF. All processed locally in your browser.

split PDFPDF splitter

Organize PDF Pages

Rearrange, rotate, and delete pages in your PDF files online. Reorder pages by drag-and-drop, rotate individual pages, remove unwanted pages, and download a perfectly organized PDF — all processed locally in your browser.

organize PDFrearrange PDF pages

Delete PDF Pages

Delete unwanted pages from your PDF files online. Select pages to remove from a visual thumbnail grid, keep only the pages you need, and download a clean PDF — all processed locally in your browser.

delete PDF pagesremove pages from PDF

Rotate PDF Pages

Rotate individual PDF pages or all pages at once. Clockwise 90°, counter-clockwise 90°, or 180° rotation. Visual thumbnail grid, batch rotate all, reset all — all processed locally in your browser.

rotate PDFrotate PDF pages

Add Page Numbers to PDF

Add page numbers to your PDF files with custom positioning. Choose from 6 preset positions (top-left, top-center, top-right, bottom-left, bottom-center, bottom-right), drag to reposition, skip specific pages, and preview changes live — all processed locally in your browser.

add page numbers to PDFPDF page numbers

What is Crop PDF?

Cropping PDF pages lets you remove unwanted margins, whitespace, borders, or edge artifacts from your documents. The Crop PDF Pages tool provides an interactive visual crop box that you can drag and resize directly on a full-page preview, with precise percentage controls for top, right, bottom, and left margins. Whether you are trimming white space around a scanned document, cutting out header/footer artifacts, or removing excessive borders from exported slides, this tool gives you complete control over every page's visible area.

The crop region you define on the preview is automatically applied to all pages in the document — no need to configure each page individually. A live thumbnail grid shows every page in your document so you can verify the full content before processing. The crop is implemented by setting each page's MediaBox in the PDF specification, which is the standard method used by professional PDF editors.

All processing runs entirely in your browser using pdf-lib for professional-grade PDF manipulation. Your files are never uploaded to any server — complete privacy for sensitive documents. The interactive crop box responds to both mouse and touch events, and the margin controls provide fine-grained adjustment for precise results.

How to Use Crop PDF

  1. Drop a PDF file onto the upload area or click "Choose File". Only PDF files up to 50 MB are accepted.
  2. After loading, a full-page preview of the first page appears with an interactive crop box overlay. A thumbnail grid below shows all pages in the document.
  3. Adjust the crop area using any of these methods: Drag the crop box to move it to the desired position. Drag the corner handles (white circles at each corner) to resize the box. Enter percentage values in the Top, Right, Bottom, and Left margin inputs for precise control.
  4. The dark overlay outside the crop box clearly shows which areas will be removed. The margin values update live as you drag.
  5. A live summary shows the current crop margins as percentages of the page dimensions.
  6. The thumbnail grid at the bottom shows every page — all pages receive the same crop.
  7. When ready, click the floating Crop PDF button. A 5-second processing spinner with progress percentage provides clear visual feedback.
  8. After processing, download the cropped PDF directly or share it using the Web Share API. Click "Start Over" to work with a new PDF file.

Example

Input: "presentation-slides.pdf" (30 pages, 8.5 MB)

Situation: A PowerPoint presentation exported to PDF with 0.75-inch white margins on all sides. You want to remove the margins so the slide content fills the entire page.

Step 1 - Upload: Drop presentation-slides.pdf onto the upload area. After loading, the first slide appears as a full preview with a default crop box (5% margins on each side).

Step 2 - Adjust margins: Drag the bottom-right corner handle outward until the margin values read Top: 0%, Right: 0%, Bottom: 0%, Left: 0% — or type "0" into each input. The dark overlay disappears completely, showing the full page.

Step 3 - Set desired margins: For slides with speaker notes at the bottom, set Top: 2%, Right: 2%, Bottom: 12%, Left: 2% to trim the notes area. The preview updates to show exactly what will be cropped.

Step 4 - Process: Click the floating Crop PDF button. The spinner appears and completes in approximately 5 seconds.

Output: "presentation-slides-cropped.pdf" — all 30 slides have clean 2% margins with speaker notes removed. File size reduced to 7.2 MB due to cropped content.

Frequently Asked Questions

How does PDF cropping work?

PDF cropping works by modifying each page's MediaBox — the boundary that defines the visible area of the page. Content outside the cropped area still exists in the PDF file but is hidden from view and printing. This is the same method used by professional PDF editors like Adobe Acrobat.

Can I crop each page differently?

Currently, the crop region is applied uniformly to all pages in the document. This covers the most common use case — trimming the same margins from every page. For per-page cropping, you can process the document in separate runs by splitting it first.

What is the maximum file size?

The maximum file upload size is 50 MB. If your file exceeds this limit, you will see a clear error message. Consider using the PDF Compressor tool first for larger files.

Can I crop a password-protected PDF?

No. The tool cannot process password-protected or encrypted PDF files. Remove password protection first using a PDF unlocker tool before cropping.

Is my data private when cropping PDF pages?

Absolutely. All processing happens entirely in your browser using client-side JavaScript. Your PDF files are never uploaded to any server. The tool uses pdf-lib and pdf.js running locally in your browser to read, render previews, and save your documents.

Does the crop affect the original file?

No. Your original PDF file is never modified. The tool creates a new PDF with the crop applied. Your original file remains completely untouched on your device.

Can I preview the crop before processing?

Yes. The interactive crop box on the first-page preview updates live as you drag or type margin values. The dark overlay outside the crop area clearly shows which content will be removed. The thumbnail grid below shows every page in its current state.

What if I crop too much content?

You can always adjust the crop box before processing. Drag the handles outward to include more content, or type smaller margin values in the inputs. The Reset button at the bottom clears all margins back to 5%.

Does cropping reduce file size?

Cropping can reduce file size when it removes large areas of whitespace or uniform backgrounds, because the rendered output contains less visual information. However, the hidden content still exists in the file, so size reduction depends on the PDF structure.

Does the tool work on mobile devices?

Yes, the tool is fully responsive and supports touch events for the crop box interaction. The preview and thumbnails adapt to any screen size. On smaller screens, the crop handles remain easy to grab.

Is this tool free to use?

Yes, the Crop PDF Pages tool is completely free with no hidden costs, subscriptions, or premium tiers. No watermarks, usage limits, or registration required. Crop as many PDFs as you need.

What types of documents benefit most from cropping?

Documents that benefit most include: exported presentation slides with margins, scanned book pages with dark borders, PDFs with excessive whitespace around content, documents with header/footer artifacts, and any PDF where content occupies only a portion of each page.

Key Takeaways

  • Interactive crop box with drag-to-move and corner handles for resize
  • Precise percentage controls for Top, Right, Bottom, and Left margins
  • Full-page live preview with dark overlay showing the crop region
  • Thumbnail grid displays every page for content verification
  • Crop applied uniformly to all pages using PDF MediaBox manipulation
  • Powered by pdf-lib for professional-grade PDF page modification
  • All processing is 100% local — no PDF files are uploaded to any server
  • 5-second processing spinner with progress percentage for clear feedback
  • Download the cropped PDF directly or share it using the Web Share API
  • Original file is never modified — only the downloaded copy reflects your crop
  • Supports both mouse and touch interactions for the crop box
  • Reset button clears margins to default 5% for quick restart
  • 100% free with no registration, watermarks, usage limits, or premium tiers
  • Works on all devices including mobile, tablet, and desktop with responsive layout
  • Max 50 MB per file with clear error messaging for oversized uploads
Was this helpful?