Crop PDF
Remove unwanted margins, scanner borders and blank page edges from your PDF. Choose all pages or selected pages and adjust each side with precise percentage controls.
Select PDF file or drag and drop here
Your file stays private. It is processed inside your browser.
This tool works inside your browser. Your PDF remains on your device during normal processing.
How to Use
- Upload your PDF.
- Review the file details.
- Choose all pages or selected pages.
- Select a crop preset or custom values.
- Adjust each side if needed.
- Set the output file name.
- Click Crop PDF.
- Download the finished file.
Key Features
- Crop all pages or selected pages
- Separate controls for each page edge
- Small, medium and large presets
- Percentage based adjustments
- Works in modern browsers
- No software installation
- Free PDF tool
- Simple and user friendly
Crop Presets
What Is the Crop PDF Tool?
The Crop PDF tool is a free PDF tool that lets you remove unwanted margins from the top, right, bottom and left sides of PDF pages. It is useful when a document contains excessive white space, scanner borders, uneven page edges or unnecessary blank areas around the main content.
You can apply cropping to every page or only selected pages. The tool also includes small, medium and large crop presets, along with custom percentage controls for each side of the page.
PDF Mentor processes the document directly inside your browser. You do not need to install software or create an account.
Why Crop a PDF File?
A PDF may contain wide margins because of scanning, printing settings, document conversion or page layout choices. These blank areas can make a document harder to read on smaller screens and may waste space when printing.
Cropping can help you
- Remove unwanted white margins
- Remove scanner borders
- Create a cleaner page layout
- Focus attention on the main content
Useful for
- Mobile reading
- Printed documents
- Presentations
- Making page dimensions more consistent
How to Use This Tool
Upload your PDF, choose whether to crop all pages or selected pages, then select a preset or enter custom crop values. Review the summary, click Crop PDF and download the finished file. The original PDF remains unchanged because the tool creates a separate cropped copy.
Step by Step Instructions
Step 1: Upload Your PDF
Click Select PDF File and choose a PDF from your device. You can also drag and drop the document into the upload area.
Step 2: Review the File Details
After the PDF loads, review the file name, original file size and total number of pages.
Step 3: Choose the Pages to Crop
Select All Pages to apply the same crop throughout the document. Choose Specific Pages when only certain pages need adjustment.
Step 4: Select a Crop Preset
Choose Custom Crop, Small Margin Crop, Medium Margin Crop or Large Margin Crop.
Step 5: Adjust Individual Crop Values
Enter separate values for the top, right, bottom and left edges. Values are percentage based.
Step 6: Set the Output File Name
Enter the preferred name for the cropped PDF.
Step 7: Crop and Download
Click Crop PDF. When processing is complete, click Download PDF to save the cropped document.
Tool Settings Explained
| Setting | What It Does | Recommended Use |
|---|---|---|
| Apply Crop On | Choose all pages or specific pages. | Use specific pages when only part of the document needs cropping. |
| Pages | Enter individual pages or ranges. | Examples include 2, 1,4,8 or 3 to 10. |
| Custom Crop | Lets you set each page edge separately. | Best for uneven margins or scanner borders. |
| Small Margin Crop | Applies a 3 percent crop to all four sides. | A good starting point for light white margins. |
| Medium Margin Crop | Applies a 7 percent crop to all four sides. | Useful for wider page margins. |
| Large Margin Crop | Applies a 12 percent crop to all four sides. | Use carefully when a page has large blank borders. |
| Top Crop | Removes a percentage of the visible page area from the top. | Keep important headers safely inside the visible page. |
| Right Crop | Removes a percentage from the right edge. | Useful for extra right side white space. |
| Bottom Crop | Removes a percentage from the bottom edge. | Watch for page numbers and footers. |
| Left Crop | Removes a percentage from the left edge. | Useful for scanner borders or binding space. |
| Output File Name | Sets the name of the downloaded PDF. | Use a clear name that distinguishes the cropped copy from the original. |
Real Before and After Example
A user scans a 30 page training document. Each page contains a thick white border and a dark scanner edge on the left side. The content appears small on a phone because unused margins take up too much space.
The user applies Top 4 percent, Right 5 percent, Bottom 4 percent and Left 8 percent. Most blank space and the scanner border are removed from view, making the document cleaner and easier to read.
Who Should Use This Free PDF Tool?
- Students working with scanned notes
- Teachers preparing study material
- Office workers cleaning reports
- Businesses processing forms and invoices
- Designers adjusting presentation files
- Publishers preparing digital documents
- Researchers organizing scanned papers
- Freelancers sharing client files
- People removing scanner borders
- Anyone who needs to remove PDF margins
Privacy and File Security
The tool works directly inside your browser. Your PDF is processed on your device during normal use, which can be helpful when working with personal documents, invoices, internal reports, educational material or business files.
For highly sensitive documents, always follow your company or organization security policy before using any browser based document tool.
Important Cropping Limitation
This free PDF tool changes the visible crop area of each selected page. In some PDF viewers, hidden cropped content may technically remain inside the PDF file. The content is no longer visible in the normal page view, but it may not be permanently deleted from the internal document structure.
Because of this limitation, the Crop PDF tool should not be used as a secure redaction tool. For confidential information, use a proper redaction method that permanently removes the selected content.
Limitations and Troubleshooting
The tool may not process certain files correctly, including password protected PDFs, corrupted documents, unsupported PDF structures, very large files, documents with unusual page boxes or files that use complex internal formatting.
- Confirm the PDF opens normally in another PDF viewer.
- Refresh the page and upload the file again if processing stops.
- Remove password protection only when you have permission to do so.
- Avoid extremely large crop values because important content can be removed from view.
- Keep the original PDF in case you need to adjust the crop again.
Frequently Asked Questions
Is this a free PDF tool?
Yes. You can crop PDF pages directly in your browser without installing desktop software.
Can I crop only selected pages?
Yes. Choose Specific Pages and enter the required page numbers or ranges.
Can I crop each side separately?
Yes. Top, right, bottom and left crop values can be controlled individually.
What do the percentages mean?
The percentage indicates how much of the page dimension will be removed from that side.
Does cropping delete hidden content permanently?
Not always. This tool changes the visible crop area, but hidden content may remain inside the PDF structure.
Does the tool change my original file?
No. A separate cropped PDF is created for download.
Can I use it on a mobile device?
Yes. The tool can work in modern mobile browsers, although large files may process more smoothly on a desktop computer.
Tips for Better Results
- Start with the Small Margin Crop preset.
- Use custom values when page margins are uneven.
- Check the final PDF before printing or sharing it.
- Avoid cropping too close to text, page numbers, signatures or important graphics.
- Keep the original file in case you need to adjust the crop again.
Conclusion
The Crop PDF tool is a useful free PDF tool for removing blank margins, scanner borders and unwanted page edges. It offers page selection, preset crop levels, custom percentage controls and browser based processing.
Whether you are cleaning scanned notes, improving a report, preparing a presentation or making a document easier to read on mobile devices, this tool provides a simple way to crop PDF pages without installing additional software.
Crop your PDF in a few clicks
Remove extra margins and create a cleaner page layout.