The advice and recommendations are always spot on, and I know I will get a creative and thoughtful design. I really enjoy working with the team at PrintHouse. We’re thrilled with how it’s turned out and would highly recommend you to anyone. It’s been a pleasure working with your team, you patiently guided us through the production process advising from your experience how best to deliver a premium end product. We have received the book this morning, the result is stunning, everybody loves it here! Thanks a lot for your hard work and flexibility. If you have any urgent matter related to design and print or simply prefer human contact, please let me know on 020 8963 0123 or email yet again you’ve come to our rescue – don’t know how you do it but please just keep doing it! Stunning job everyone loves it! I would love to hear your opinions about our Calculator and how it can be improved. Not all images are automatically eligible for print, based only on their dimensions. Note: Keep in mind the above tool is for information purposes only. That should be plenty to put on a postcard! In the left hand side window select the text and enter ‘4.2’. On the calculator, press the ‘MEGAPIXELS’ button. What size in inches (print quality, of course) is it equal to? You took a picture with your 4.2 megapixel camera. If the result is close to 21 CM x 30 CM (A4 is exactly 21 x 29,7 CM) or more you should be safe using the image on the cover. Then, select ‘PIXELS’ button and enter the horizontal and vertical value into the calculator. You want to check if a photo on your hard drive will be of enough quality to use as a full bleed cover image on an A4 brochure.įirst, check the image pixel dimensions as per point 2. Press any other button to see what your image dimensions will be (e.g. On Mac, open the image in Preview, select ‘Tools’ menu and ‘Show Inspector’ (cmd+i). To check pixel dimensions of an image in Windows, right-click the file, select ‘Properties’, ‘Summary’ tab and press ‘Advanced’ button. Just select the text inside either blue window and enter horizontal and vertical dimension of your image. Yo may choose pixels, megapixels, centimetres or inches. So to find the total image size in megabytes, divide the number of kilobytes (43,139.94) by 1024, which gives us 42.1 megabytes (or MB, although for whatever reason, the Image Size dialog box shortens "MB" to just "M").Īnd if we look again at the Image Size dialog box, we see that sure enough, Photoshop is showing me that the size of my image is 42.Instructions - easy as 1, 2, 3įirst press a button at the bottom with units you want to translate from. So instead, we usually refer to file size in megabytes. Step 4: Convert the image size from kilobytes to megabytesĮven kilobytes is too small of a measurement type to be very practical for most images. So to convert bytes to kilobytes, divide the total number of bytes by 1024. Instead, we usually talk about image size in either kilobytes or, more commonly, in megabytes. But a byte is a very small unit of measurement, so it's not very practical to refer to the size of an image in bytes. Step 3: Convert the image size from bytes to kilobytes So to find the total file size, in bytes, multiply the total number of pixels by 3. Remember that each pixel in the image needs 3 bytes in memory one for the Red channel, one for the Green channel, and one for the Blue channel. Step 2: Multiply the total number of pixels by 3 But as we learned, the pixel count alone isn't the whole story. To find the total number of pixels, multiply the width and height together. The width and height of the image in pixels. I'll re-open it by going back up to the Image menu and choosing Image Size: Step 1: Find the total number of pixels in the imageįirst, we need the total number of pixels, and we find that in the Image Size dialog box. So to figure out the file size of an image, all we need to do is take the total number of pixels, multiply it by 3, and we have our answer! Here's how to do it. It's always 3 bytes for every pixel one for red, one for green and one for blue. But the amount of memory that each pixel needs doesn't change. Of course, most images contain millions of pixels, not just 10. For example, if your image contained 10 pixels, each pixel would need 1 byte for red, 1 byte for green and 1 byte for blue, for a total of 3 bytes. Learn more about RGB color and color channels in Photoshop How do color channels affect image size?Įach of the three color channels (Red, Green and Blue) takes up exactly 1 byte in memory for each and every pixel in the image. All colors in your image are made by mixing red, green and blue.
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