Enlarge Photo for Poster – Wall-Worthy Prints
That perfect photo deserves to be displayed big. But most digital photos lack the resolution for quality poster-size printing.
Poster Size Resolution Requirements
Quality poster printing requires adequate resolution. Here are common sizes and their pixel requirements at 150 DPI (suitable for posters viewed from typical distance):
18×24 inches: 2700×3600 pixels
24×36 inches: 3600×5400 pixels
27×40 inches: 4050×6000 pixels
36×48 inches: 5400×7200 pixels
For closer viewing or premium quality, double these values (300 DPI). Our AI upscaling can reach these requirements from much smaller sources.
Enlargement Process for Posters
1. Assess your source: Check current resolution and quality
2. Enhance first: Improve quality before enlarging for best results
3. Calculate target: Determine pixels needed for your poster size and viewing distance
4. Upscale: Use AI upscaling to reach target resolution
5. Final prep: Save in appropriate format for your print service
Best Photos for Poster Enlargement
High-quality sources: Sharper originals produce better posters
Good composition: Images that work well at large scale
Sufficient detail: Photos with interesting detail to appreciate at poster size
Meaningful subjects: Images worth displaying prominently
Even modest-resolution photos can become excellent posters with proper AI enlargement.
Poster Printing Tips
Choose the right paper: Matte for art photography, glossy for vibrant colors, canvas for texture
Consider viewing distance: Closer viewing needs higher resolution
Use professional services: Quality printers produce superior results
Request proofs: Verify quality before final printing of important pieces
Related Enlargement Services
Upscale for Printing – General print preparation
Image Upscaler – Upscaling tool
Enlarge Photo – General enlargement
4K Upscaling – 4K resolution
Create Your Poster
Transform your favorite photos into impressive poster prints. AI enlargement makes any photo poster-ready.
Our poster enlargement service is currently under development. Check back soon!
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Frequently Asked Questions
To enlarge a photo for poster printing, first determine your poster size and calculate needed pixels (poster dimensions in inches × 150 DPI for standard posters). Then use AI upscaling to enlarge your photo to that resolution. The AI generates appropriate detail during enlargement, producing poster-quality results even from moderate-resolution sources.
A 24×36 inch poster needs approximately 3600×5400 pixels at 150 DPI for excellent quality when viewed from typical distance. For premium close-viewing quality, use 200-300 DPI (4800-7200 × 7200-10800 pixels). Our AI upscaler can enlarge smaller photos to these dimensions while maintaining sharpness.
Yes, modern smartphone photos can make excellent posters. Recent phones capture 12+ megapixels, enough for moderate poster sizes directly, and AI upscaling can enlarge them further for large posters. Even older phone photos can be upscaled successfully, though results depend on original quality.
Poster printing typically uses 150 DPI for excellent quality at typical viewing distances (3+ feet). Some printers recommend 100 DPI for very large posters. Only close-viewing situations require higher DPI. The key is matching resolution to viewing distance – larger posters viewed from farther away need fewer pixels per inch.
With proper AI upscaling to appropriate resolution for your poster size, pixelation is avoided. The AI generates smooth, natural detail during enlargement rather than just stretching pixels. Follow DPI guidelines for your poster size, and AI upscaling ensures sharp, professional results.