Official Paper Size Resizer
Resize your image to standard international, office, business, print and photo paper sizes. Choose a preset or create your own custom dimensions.
1. Upload Your Image
① Choose Official Size
Select A0, A1, A2, A3, A4, A5 and other ISO paper sizes, North American sizes or common photo sizes.
② Select Orientation
Use Portrait for vertical documents or Landscape for horizontal documents. The dimensions automatically switch.
③ Set DPI
Choose the resolution you need. 300 DPI is a common choice for high-quality printing.
④ Fit Your Image
Choose Fit to preserve the entire image, Fill to cover the paper, or Stretch to fill the exact dimensions.
⑤ Adjust Position
Use the X and Y controls to position your image precisely inside the selected paper size.
⑥ Download
Select JPG, PNG or WebP, adjust quality and download the resized image directly to your device.
Helpful Tips
- For normal office printing, A4 is the most commonly used paper size.
- A3 is twice the size of A4 and is useful for posters, drawings and larger documents.
- Use 300 DPI when preparing images for high-quality printing.
- Use Fit when you do not want any part of your image cropped.
- Use Fill when the complete paper area must be covered.
- PNG is recommended when you need transparency or lossless output.
- JPG is useful for smaller file sizes and normal photographs.
- All image processing is performed in your browser.