Understanding PDF Page Sizes: A4, Letter & More
Choosing the right page size for your PDF is crucial for printing and professional presentation. Here's everything you need to know about standard page sizes.
Common Page Sizes
A4
International standard
210 × 297 mm
8.27 × 11.69 in
US Letter
North America standard
215.9 × 279.4 mm
8.5 × 11 in
US Legal
Legal documents
215.9 × 355.6 mm
8.5 × 14 in
A3
Posters & diagrams
297 × 420 mm
11.69 × 16.54 in
A4 vs Letter: Which to Use?
Use A4 when:
- Your audience is outside North America
- Sending to international clients
- Academic papers (often required)
- EU/UK business documents
Use Letter when:
- Your audience is in US/Canada
- Printing on standard US paper
- US business correspondence
- Required by US institutions
Orientation: Portrait vs Landscape
Choose orientation based on your content:
- Portrait: Standard documents, text-heavy content, vertical photos
- Landscape: Wide images, spreadsheets, presentations, panoramas
- Auto: Let the tool choose based on each image's dimensions
Fit to Image
The "Fit to Image" option creates custom-sized pages that match each image exactly. This is perfect for photo collections where you don't want any white space or cropping.