12/18/2023 0 Comments Compress png blur web![]() More and more people are browsing the internet on phones and have you noticed what format the average phone is? I'll give you a hint, it's vertical. The best sizes change all the time! But there has been a major trend recently. Sizing images for social media is always a bit of a moving goal post. It seems to make no difference where you post. ![]() More than this, they were all of an identical size - even the so-called 'high quality' image!īottom line. When downloading the image I could see no difference whatsoever between them when pixel peeping at 100%. Guess what? Each one of them treated the image identically. I uploaded my sample images to my timeline, a group timeline, my page and using 'high quality' in an album. I have bought into this in the past but I decided to actually test the principles. There is a lot of information about the differences of posting to Timelines, Groups, Pages and Photo Albums (on high quality). ![]() The downside is that PNGs are bigger and take up more space on your hard drive.ĭIFFERENCES BETWEEN TIMELINE, GROUPS AND PAGES So you can certainly try the PNG trick but I found no practical benefit. When I downloaded the Facebook converted PNG -> JPG file and compared it to the Facebook JPG -> JPG converted file, it was an identical size and looked identical to my eye. When I tested this myself, I found the difference to be undetectable. Then, when Facebook gets the image, it will compress it again. If you export to your hard drive in JPG, well that means you have already applied one level of compression in the conversion from RAW to JPG. The theory behind exporting as a PNG and uploading to Facebook is that there will only be one stage of compression. So while it was true that PNGs looked way better in the past, it is no longer true. Facebook now converts them to JPG's on upload and then compresses them further. While it was certainly the case a while back that Facebook actually posted PNG's (they can't be compressed because they are a lossless format). Leave it at 300DPI and let Facebook handle it. On Facebook, it will make no difference - they are going to compress the crap out of it anyway. Ignore all the advice about downsampling your pic to 72DPI (to prevent theft). Not a chance! The image got compressed further - another 11% in fact! DON’T DOWN SAMPLE YOUR DPI It should have already optimised this image right? Facebook should have accepted it with open arms and done precisely nothing. I re-uploaded (is that a word?) the previously 70% compressed image to Facebook. Comparing the newly downloaded images to each other revealed that the uncompressed file was 11% larger than the pre-compressed file after Facebook had finished with them. However, the pre-compressed image was 20% of the full resolution original. I found that the previously uncompressed image had been compressed by Facebook and was now just 22% of the original size. ![]() I then downloaded each image to compare them. I uploaded a maximum quality image and a 70% 72DPI image to facebook on a standard group timeline. However, it doesn't make a positive difference for Facebook because all that will happen now is that Facebook will compress your already compressed shot even more! That's good advice for posting to your website or to a Wordpress blog because the file size will be much smaller and load much quicker and you definitely want your website to look good and load quickly. There are a whole raft of blogs and articles out there which spend a lot of time telling people to compress their images when exporting for web use to around 70% quality. This is why most photographers use a dark grey / black background on their websites, this boosts the appearance of brightness and saturation. Your image will look darker against a white background. Save the sRGB Colour Profile into the ImageĪDD EXTRA BRIGHTNESS & A LITTLE SATURATIONįacebook has a white background which will bleed the image of brightness. Make sure the longest edge is exactly 2048px ![]() Facebook has a white background that will make your images look darker and bleed them of colour.ĭon’t compress your images - Facebook will compress the image a second time! HOW TO UPLOAD THE BEST POSSIBLE PICTURES TO FACEBOOKĪdd extra brightness. ![]()
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