How to Print PDFs with Mixed Paper Sizes on iOS
Question details
The user needs to print a multi-page PDF document that contains different paper sizes (such as legal and letter) on an iOS device while maintaining the original dimensions for each page.
- Product
- AirPrint / iOS PDF Apps
- Device & OS
- iOS
- Scenario
- Printing a long PDF document with multiple page sizes from an iPhone or iPad.
- Observed behavior
- Standard iOS print dialogs and default PDF readers often lack the option to automatically choose the paper size by the PDF's source dimensions, making mixed-size printing difficult.
Ensure your printer is AirPrint-compatible and is physically loaded with the required paper sizes (e.g., both legal and letter) in different hardware trays.
Use AirPrint or the Printer Manufacturer's App
Utilize advanced print settings available through AirPrint or dedicated printer apps to enable automatic paper selection.
The standard iOS print dialog limits advanced tray selection. To print a document with mixed paper sizes, you must check if your specific printer exposes a source-based paper selection feature via iOS AirPrint, or use the manufacturer's proprietary application.
Open your PDF file using your preferred PDF viewer on your iPhone or iPad.
Tap the 'Share' icon and select 'Print' to open the iOS AirPrint dialog.
Scroll down to look for 'Paper Size' or 'Options' and select 'Automatic' or 'Choose paper size by PDF source' if supported by your printer model.
If the AirPrint dialog lacks this option, open the PDF in your printer manufacturer's official app (e.g., HP Smart, Epson iPrint) to access dedicated tray and mixed-size printing settings.
Print via Desktop for Advanced Tray Settings
If iOS driver limitations prevent mixed-size printing, transfer the file to a desktop computer where advanced printer drivers allow automatic tray selection.
Easily Print Mixed-Size PDFs with WPS Office
Overcome iOS print limitations by using WPS Office. By syncing your document via WPS Cloud, you can effortlessly print multi-sized PDFs from your PC or Mac, utilizing advanced 'Choose paper size by PDF page size' settings that guarantee flawless physical output.
- 1. Upload to WPS Cloud on iOS: Open WPS Office on your iPhone or iPad, import your mixed-size PDF, and save it to your WPS Cloud.
- 2. Open WPS Office on Desktop: Launch WPS Office on your PC or Mac, log in with the same account, and open the synced PDF.
- 3. Access Print Settings: Press Ctrl+P (or Cmd+P on Mac) to open the robust WPS Office print dialog.
- 4. Enable Auto Paper Size: Check the option for 'Use PDF page size to select paper source' and click Print.
Frequently Asked Questions
Why doesn't my iPhone automatically print different PDF page sizes?
The default iOS AirPrint dialog is designed to simplify print settings for mobile users and often omits advanced features like tray selection by PDF page dimensions. You are relying entirely on the specific printer's driver capabilities that are exposed to iOS.
Can I use the iOS Files app to print a mixed-size PDF?
While you can print directly from the Files app using the Share sheet, you will still be limited by the standard iOS print dialog. If your printer doesn't support automatic tray selection through AirPrint, all pages will default to a single paper size.
What should I do if my printer app lacks the mixed-size feature?
If neither AirPrint nor the printer manufacturer's iOS app supports mixed-size printing, the most reliable workaround is to open the PDF on a Mac or Windows PC. Desktop printer drivers offer full support for choosing hardware trays based on the PDF's source dimensions.
