🖨️ Print-Ready Resizer
Resize images for printing with exact DPI and paper sizes. A4, Letter, A5, 4×6, business cards. 100% browser-based.
✨ See what this tool can do
Before
🖨️
After — processed
How to Use
1
Upload Image
Click the upload area or drag and drop your image file.
2
Choose Paper Size
Select a preset or enter custom dimensions.
3
Set DPI
Choose 72–600 DPI depending on print quality needed.
4
Download
Save your print-ready image.
Detailed User Guide
Step 1: Upload Your Image
Click the upload area or drag and drop an image. Supported formats: JPG, PNG, WebP. The image loads instantly — nothing is uploaded to any server.
Step 2: Choose Paper Size
Select from common print presets:
- A4 (210×297mm): International standard, most common worldwide
- Letter (8.5×11"): US standard, common in North America
- A5 (148×210mm): Half of A4, for booklets and small flyers
- 4×6" (10×15cm): Standard photo print size
- 5×7" (13×18cm): Larger photo print, common for frames
- Business Card (3.5×2"): Standard US business card size
- Custom: Enter any width and height in inches
Step 3: Set DPI (Dots Per Inch)
DPI determines print quality:
- 72 DPI: Screen resolution, not recommended for printing
- 150 DPI: Acceptable for large-format prints viewed from far away
- 300 DPI: Standard for high-quality photo prints (recommended)
- 600 DPI: Professional-grade printing, very large file sizes
Rule of thumb: For photo prints, always use 300 DPI. For large banners viewed from >3m away, 150 DPI is fine.
Step 4: Download
Click Download to save your print-ready image. PNG is recommended for maximum quality; JPG at quality 92+ is also acceptable for photos.
Best Use Cases
- Photo prints: Use A4 or 4×6" at 300 DPI → JPG
- Business cards: Use Business Card preset at 300 DPI → PNG
- Posters/banners: Custom size at 150 DPI → PNG
- Documents: Use Letter or A4 at 300 DPI → JPG
- Art prints: Use A4/A5 at 600 DPI → PNG (maximum quality)
Pro Tips
- For photo prints at a lab, always export at 300 DPI in sRGB color space
- A4 at 300 DPI = 2480×3508 pixels — make sure your source image is at least that large
- If your source image is smaller than the target DPI size, the result will be upsampled (quality loss) — use our Image Upscaler first
- For inkjet home printing, 300 DPI is more than enough — 150 DPI looks nearly identical
- Save as JPG with quality 92-95 for prints; use PNG only if you need to preserve sharp text or line art
Frequently Asked Questions
300 DPI is the industry standard for high-quality photo prints. Most photo labs require 300 DPI. For large-format prints (posters, banners) viewed from >3m away, 150 DPI is acceptable.
A4 (210×297mm) is the international standard used in most countries. Letter (8.5×11 inches / 216×279mm) is the US standard. Always check which your print service expects.
If your source image has fewer pixels than the target DPI size, use our Image Upscaler tool first to enlarge it 2× or 4×, then come back to set the correct DPI.
For photos, JPG at quality 92+ is fine and produces smaller files. For text, line art, screenshots, or images with sharp edges, use PNG to avoid compression artifacts.
Yes. The Canvas API produces images with the correct pixel dimensions for the chosen DPI and paper size. When you open the file in Photoshop or your print lab's upload system, the dimensions will match the physical print size at the specified DPI.
Yes. The output images are print-ready. For commercial printing, we recommend 300 DPI and JPG format (the industry standard). Always request a proof before a large print run.
No. All processing happens entirely in your browser. Your images never leave your device.