Learn how to spot fake news so you can focus on the facts and protect yourself from fictions.īefore you use the "I have nothing to hide" argument please read this paper – all of it. It’s really appreciated, and makes us proud of all the work you and we’ve done! Ongoing ![]() We’ve since grown a bit larger, and we’d like to thank everyone who’s subscribed, before and after then. I think… I think we’re going to have 100,000 subscribers this week and that’s all kinds of awesome. u/blackhawk_12 Subreddit Rules and Wikiīefore posting in /r/privacy, read the Sidebar Rules.Įnjoy our Wiki! It has all sorts of nifty advice and explains most topics you’re interested in if you’re reading this. "I don't have anything to hide but I don't have anything I want to show you either" Just send the originals, and we’ll crop them accordingly.Dedicated to the intersection of technology, privacy, and freedom in the digital world. The real value is the dimensions of the image in pixels, so when customers ask me at what resolution should they send their pictures, I’m always very clear about my response: ![]() So you see, PPI has no meaning in web design at all. PPI is purely a value that allows people, and software, to calculate the printable size of an image. That’s because they are, there is no difference in quality ot resolution. If it made a difference, the last image would be 10,000 times larger than the first (30 x 30 = 900 pixels 3000 x 3000 = 9,000,000 pixels), but they’re the same. Too high? 3000ppi gives the same file size and therefore no speed penalty Too low? 30ppi gives a file size of 78kb and no loss of quality. I cropped both to the same dimension, and added a PPI value to each, although I wouldn’t normally choose a PPI at all. So the upshot is that it makes no difference to your website images, how many pixels there are per inch. And in fact, a very low resolution image, say 20 x 20 pixels, cannot be ‘upsampled’ by changing the PPI setting, if the pixels aren’t there, they can’t be magically created. There is no ‘inch’Īny DPI, or PPI, setting chosen at cropping would be totally ignored here. If your screen resolution was 1024 x 768, then your image would take up roughly three quarters of the screen size, regardless of any dpi setting.Īn image will display at the pixel dimension size it is cropped to, unless it is forced by code to show bigger or smaller in which case, the pixel dimension will be over-ridden. Images are displayed in a browser according to their pixel dimension, that is their absolute size, so an image cropped to 800 pixels by 600pixels would display using that amount of pixels according to the screen resolution. ![]() He referred me to lots of references on the web that suggested he was right.īut alas, just because it’s on the web doesn’t mean it’s right! And DPI is a print measurement anyway – print resolution is measured in dots per inch (DPI), screens in pixels per inch (PPI). This picture of Beverley Minster in Yorkshire is cropped at a laughable one ‘DPI’, proving the point that that DPI, or more correctly PPI, on a web page doesn’t mean anything. ‘No’, I replied, ‘there’s no such thing as DPI in web design.’ A customer had a bunch of images ready to send and he called to ask: Should I crop my images to 72DPI? ![]() This is a super question which I hear all the time. “There is nothing worse than a sharp image of a fuzzy concept.”
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