To print sharp and clear images, they need to be in high resolution. The standard is 300dpi (dots/pixels per inch). In general, images downloaded from the internet are low resolution; they might look great on the display screen, however they will look pixelated (blurry or fuzzy) when printed. **For large format posters a lower resolution may be acceptable, please contact us and we can verify your artwork before you order. You can check the resolution of your image file in photoshop or other photo editing programs or by simply doing the following: On a PC: Right click on the file > select ‘Properties’ > select the ‘Details’ tab, scroll down and note the Image Resolution horizontal/vertical. On a Mac: Open the image in preview > press Apple/command + I OR go to ‘Tools’ > ‘show inspector’ and note the ‘image DPI’. If an image is 72dpi at final size, it is only suitable to be viewed on screen or on the web. Large format posters can be around 200dpi (depending on the image and text used on the image) but in general all print files should be 300dpi. If you are unsure whether your images are high resolution or will be suitable for print, we are more than happy to check your files. Simply send us your image files and our friendly staff will be able to verify this for you.