QBMFX Crop PDF and trim margins
Trim unwanted page margins from a PDF by entering the amount to remove from each edge. This can help clean scans, tighten notes for reading and prepare a document for a later printing layout. Inspect every page after cropping because the same edge settings may not suit documents with mixed layouts, rotated pages or annotations near the border.
Choose your files and review the settings.
Keep originals and inspect the result before printing. File changes clear previous downloads. Heavy image and OCR work can take longer on a phone.
Using Crop PDF and trim margins
- Choose a PDF.
- Enter top, right, bottom and left trim amounts in millimeters.
- Create the cropped PDF and inspect every page edge.
Behind the result
The PDF’s visible page rectangle is adjusted according to the selected trims. Cropping changes the viewing boundary; it does not guarantee removal of text, images or objects outside that boundary.
Free tools for everyday work
Book centers, photocopy shops, freelancers and developers can use this workspace without a paid plan or account. Files are processed locally. Prepare website resources from offline setup before disconnecting; Urdu/OCR also needs the separate pack above.
The Windows app currently includes the original four tools. These new Book Center tools are available on the website; app and extension updates will be separate releases.
Answers and practical details
Confidential information
Use a verified secure-redaction workflow for sensitive content. Hiding content with a crop boundary or an opaque box is not proof that it has been deleted.
Price and account requirements
This website tool is 100% free. No login, subscription or paid conversion tier is required. Your device supplies the processing memory.
Files and privacy
Input documents and generated results are handled locally. They are not sent to a QBMFX conversion API or stored in a customer database. Website hosting and advertising can still make separate network requests.
Offline preparation
Prepare the website resources from Help while connected, then test the required tool offline. OCR and Urdu text tools also need their optional language or font resources prepared first. Browser storage can be removed by the browser or by you.
Windows app and Edge extension
The existing installed app and extension contain the original four PDF tools. These new Book Center tools belong to the website release; they will need a separate installed-package update.