How to Make All PDF Pages the Same Width

When working with scanned documents or merged PDFs from different sources, you will often find pages with varying sizes. This makes reading difficult and causes layout issues when printing or presenting. This guide explains how to normalize your PDF page widths using Adobe Acrobat Pro, alongside a lightweight, private browser-based alternative.

Steps to Unify Page Size Using Adobe Acrobat Pro

Adobe Acrobat Pro includes a dedicated Preflight toolkit designed for precise page scaling and standardization:

1. Open your PDF file in Adobe Acrobat Pro.
2. Open the Print Production toolset from the Tools pane. (If it is not visible, use the top search bar to search for it directly).
3. Click the Preflight tool in the Print Production panel.
4. In the Preflight dialog box, click the Select single fixups icon (shaped like a wrench).
5. Search for "page size" or "scale" in the search box to filter the fixup list.
6. Double-click the fixup named "Scale pages to specified size".
7. Input your target width and height dimensions, and check the option for proportional scaling to ensure your page contents do not warp or distort.
8. Click OK (or Run), select your destination folder, and Acrobat will rebuild the document layout.

Alternative Option: Use UniPagePDF in Your Browser

If you do not have an active Adobe Acrobat Pro subscription or prefer a straightforward web workflow without deep menu navigation, UniPagePDF provides a modern browser-based option. Files are processed entirely locally on your device, ensuring maximum data privacy:

1. Drag and drop your PDF document into the UniPagePDF uniform width tool area.
2. Choose your sizing metric (e.g., matching the exact width of Page 1, or keying in a precise width in millimeters).
3. Click export to instantly process the files locally and download your normalized document.