To print an 8 x 10 inch image at 300 PPI, use the same math: In other words, it needs to be at least 1200 x 1800 pixels in size. So for example, if you want to print a 4 x 6 inch image at 300 PPI, then you need a file that has at least 4 x 300 (1200) pixels along its short side and 6 x 300 (1800) pixels on the long side. Typical printing PPI values range from 150 to 300 PPI, although some high-end magazines may require images that are 1200 PPI. Most printing services, and indeed your own printer, will require a certain density of pixels in the image (PPI) to be able to render a print that looks good (i.e., with smooth color transitions so you can’t see each individual pixel). This literally refers to the number of pixels in an inch-long line of an image. When you’re printing an image, you may encounter the term PPI or pixels per inch. You can see these pixels if you open a photo and zoom in until you see single blocks of color (as shown below). A pixel can only be one color, and a photograph is made up of a grid of thousands of pixels, each of the different colors that together make up your image. Now, a pixel itself is a single picture element – and for our purposes, it’s the smallest element that your photo can be divided up into. The image above shows the resulting information dialog box. In Photoshop, you can open your image, then choose File > File Info > Camera Data. You can check the width and height of an image using your photo editing software. You and I might call this 14.5 MP, but camera manufacturers round this up and call it a 14.6 MP camera. So by multiplying the number of pixels along the image width by those along the image height, we get the actual number of pixels in the image (4672 x 3104 = 14,501,888). So the ratio comparing the number of pixels along the long edge of the image to the short edge of the image is 3:2.Įach of my full-sized RAW images is 4672 x 3104 pixels in dimension. My camera, like most DSLRs, captures images with an aspect ratio of 1.5. This information tells you nothing about the actual pixel dimensions of the image – it only tells you the total number of pixels that make up the image. So my camera, for example, captures 14.6-megapixel images, which is around 14,600,000 pixels per image (14.6 x 1,000,000). We offer posters, frames, canvas printing, decals, cell phone cases, banners and more.Technically, a megapixel is equal to 1,048,576 pixels in reality, camera manufacturers round this number to 1,000,000 when stating how large of an image the camera will capture. What is PosterBurner? PosterBurner is a service that turns your images into beautiful prints. You will get an email once the super resolution has completed with a link to your image as long as you don't close the browser window. If your image doesn't return within 2-3 minutes, we recommend submitting your email and leaving the browser open. How Long Does It Take to Run Super-Resolution? The time to run varies by how large your image is and how many requests are in the queue in front of you. You can consult our guide on image size and printing size, or you can send us your image by email and we'll let you know how well it will print. How Do I Know If This Enlarged Picture Will Print Well? Typically images that start out at 500 x 500 pixels (or larger) before super resolution is run on them will end up printing very well. While this free service is not the exact same approach we use for poster printing, making canvas prints, and making custom banners and decals, it is similar and works well on images 2000 x 2000 pixels and below. You can learn more about super resolution here. It uses artificial intelligence to smartly paint pixels as the image size increases. What Is PosterBurner Super-Resolution? PosterBurner Super-Resolution is a free service to improve your image quality while also enlarging your image.
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