Crop PDF Editor
Visual, high-resolution PDF margin cropper with interactive handles, auto white margin detection, and multi-unit synchronization.
Upload PDF to Crop Margins
Drag & drop your PDF file here. 100% private & client-side processing.
100% On-Device
Processed on your machine
0% Cloud Footprint
No database files or logs
Offline Capable
Runs inside local browser tab
01What is Cortar PDF?
ToolWala Crop PDF Editor is a free online tool that lets you trim margins, remove dark scanner borders, and adjust page sizes for any PDF document. Designed for students, legal professionals, and business operators, it provides a visual drag-and-drop crop box to trim pages precisely without installing desktop software. Whether preparing documents for printing, filing court records, or reading eBooks on tablets, you can select custom margins or use automated presets.
02How to use Cortar PDF
Upload your PDF document by dragging it into the drop zone or choosing browse.
Adjust the interactive crop box using corner handles or enter exact margin numbers.
Select a preset like 'Detect White Margins', 'A4 Safe Crop', or 'Book Scan'.
Choose target pages (Current Page, Selected Pages, or All Pages) to apply the crop.
Click 'Apply & Crop PDF' to compile your changes and download the cropped file.
03Key Features
Visual Crop Editor
Interactive canvas with 8 draggable handles and real-time blue backdrop overlay.
Auto White Margin Detection
Smart pixel analysis that automatically finds and crops non-white document content.
Multi-Unit Support
Switch input measurements instantly between Pixels (px), Millimeters (mm), and Percentages (%).
Client-Side Processing
Executes 100% locally in your browser memory for absolute privacy and zero cloud uploads.
Before / After Preview
Split-screen preview to compare the original uncropped page against the cropped output.
04Benefits
- 100% Free: Unlimited usage with zero hidden fees or subscription limits.
- Total Privacy: Your sensitive financial, medical, and legal documents never leave your device.
- No Installation: Works instantly on Chrome, Safari, Firefox, Edge, and mobile browsers.
- No Account Needed: Start cropping files immediately without registration or login.
- Clean Output: Generates crisp PDFs without adding any forced watermarks or branding.
05Use Cases
- Trimming dark scanner borders from scanned books, receipts, and invoices.
- Formatting legal briefs and affidavits to match strict court margin standards.
- Preparing clean PDF pages for optimal reading on Kindle, iPad, or mobile screens.
Files Never Leave Your Device
All photo editing, scaling, cropping, and document compression on ToolWala AI happen 100% locally inside your browser active memory using HTML5 Canvas & WebAssembly. Your confidential identity files and photos are never transmitted to or saved on any remote cloud server.
Why Choose ToolWala AI?
Traditional PDF tools force you to guess margin percentages or pay for expensive software licenses. ToolWala's Crop PDF Editor brings a desktop-grade visual canvas directly into your web browser. With instant live previews, multi-page targeting, and auto-white margin detection, you get precise control over your document layout while maintaining total data sovereignty.
Common Questions
Final Verdict
Clean up page margins and customize your document layouts with ToolWala's visual, private Crop PDF tool.
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Parent Category
PDF FerramentasFiles Never Leave Your Device
ToolWala executes all operations directly on your computer using WebAssembly (WASM) sandboxing and local RAM compilation. We do not copy, store, or transmit your private document details. 100% serverless, private-by-design.
No Uploads
Files compile in local RAM.
No Signups
Skip email collection.
Offline Ready
Works with internet cut off.
GDPR Compliant
Complete data sovereignty.
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