QBMFX Change PDF paper size
Prepare a PDF for a different paper size without manually reprinting it through a document editor. Choose A4, A5 or Letter, portrait or landscape orientation and the printable margins. Content is fitted proportionally onto new pages, making this useful for handouts, school notes and customer documents that arrive with mixed or unsuitable page dimensions.
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 Change PDF paper size
- Choose a PDF.
- Set the new paper size, orientation and margins.
- Create the resized PDF and check text size before printing.
Behind the result
Each original page is embedded inside the available rectangle of a new page. Proportional scaling preserves the shape of text and graphics rather than stretching them.
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
Mixed input page sizes
Each source page is independently fitted to the selected target paper. Documents with mixed original sizes therefore use a consistent output page size.
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.