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PDF Editing Issues

How to Make All PDF Pages the Same Size When Combining Files

Khadija KhanKhadija Khan Oct 19, 2026 869 views

Question details

The user needs to know how to ensure all pages in a combined PDF document have the exact same dimensions, as merging different files often retains their original, varying page sizes.

How to Make All PDF Pages the Same Size When Combining Files
Product
PDF Editor
Device & OS
not provided
Scenario
Combining multiple PDF files with varying original page sizes into a single, uniform document.
Observed behavior
When merging PDFs, the resulting document contains pages of different dimensions because the combine tool preserves the original page sizes instead of automatically adjusting them.
Before you start

Before starting, ensure you have successfully combined your PDF files into a single document and decide on the target paper size (e.g., A4 or Letter) you want for the final standardized output.

Solution 1Recommended

Standardize PDF Page Sizes Using the Print-to-PDF Feature

Use the built-in Print functionality to scale and save all differently sized pages to a single, unified paper size.

The Combine Files tool typically merges documents without modifying their individual properties, which preserves the original quality but results in uneven page dimensions. By using the 'Print' function and selecting a virtual PDF printer, you can force all merged pages to scale to a standard dimension.

1
Open the combined PDF

Open the newly merged PDF document containing the differently sized pages in your PDF reader or editor.

2
Access the Print menu

Click on the three-dot menu in the top right corner (or navigate to File > Print) and select 'Print' to open the print dialog.

3
Select a virtual printer

In the printer selection drop-down, choose 'Save as PDF', 'Microsoft Print to PDF', or your software's native virtual PDF printer.

4
Set the uniform paper size

Access the printer properties or page setup section and choose your preferred standardized paper size, such as A4 or Letter. Ensure scaling options like 'Fit to Printable Area' are checked.

5
Save the new PDF

Click 'Print' or 'Save'. A prompt will appear asking you to choose a destination folder; save the file to create a new PDF with uniformly sized pages.

Standardize PDF Page Sizes Using the Print-to-PDF Feature
Pro Tip: Selecting 'Shrink to Fit' or 'Fit to Printable Area' ensures that content on larger pages is not cut off when resized to a smaller standard dimension.
Seamless PDF Management

Merge and Standardize PDF Pages with WPS Office

WPS Office provides a comprehensive PDF toolkit that allows you to effortlessly merge multiple files and standardize page sizes. Using WPS PDF, you can easily adjust page dimensions to ensure your documents look professional, consistent, and ready for printing.

  1. 1. Open WPS PDF: Launch WPS Office and open your combined PDF document in the WPS PDF editor.
  2. 2. Open the Print Dialog: Click on 'Menu' in the top-left corner and select 'Print', or simply press Ctrl+P on your keyboard.
  3. 3. Select WPS PDF Printer: In the printer drop-down list at the top of the dialog, select 'WPS PDF' or 'Export to PDF'.
  4. 4. Adjust Page Sizing: Click on 'Page Setup' to select your desired uniform page size (e.g., A4). Then, under Print Handling, select 'Fit for printing margins'.
  5. 5. Export the Standardized File: Click 'Print' to generate and save the newly standardized PDF to your computer.
Combine multiple PDFs or image formats into a single document with just a few clicks.Easily resize pages using the built-in WPS virtual PDF printer to match standard A4, Letter, or custom sizes.Fully compatible with standard PDF formats created by Microsoft Office, Adobe Acrobat, and other tools.Lightweight software that handles large, high-resolution PDF files without slowing down your system.
microsoft office alternative - wps office

Frequently Asked Questions

Why do my PDF pages have different sizes after combining them?

Most PDF merging tools simply append the files together to preserve the original formatting and quality. If the source files were created with different page dimensions (like mixing a scanned image with an A4 text document), the combined PDF will retain those varying sizes.

Can I crop PDF pages to make them the same size?

Yes, you can use the Crop tool in advanced PDF editors to manually trim larger pages down to match the smaller ones. However, using the 'Print to PDF' method is generally faster and prevents accidental content loss by scaling the content automatically.

Will resizing my PDF pages affect the quality of the text or images?

Text in PDFs is typically vector-based and will not lose quality when scaled up or down. However, embedded raster images might appear slightly stretched, pixelated, or compressed depending on the new aspect ratio compared to their original size.

Is there a way to standardize page sizes without printing to PDF?

Some premium PDF editors feature dedicated 'Set Page Boxes' or 'Resize Page' tools. These allow you to manually input uniform dimensions (such as specific inch or millimeter measurements) for all pages without needing to route the document through a virtual print dialog.