Guides
Guides to get an image to the file size, the format or the shape you need, step by step on phone and computer, with the numbers we measured on real files.
Guides, newest first
- GuidesFile size, iPhone, AndroidHow to reduce image file size on any deviceHow to reduce image file size: give the image fewer pixels, save it at a lower quality, or save it in a newer format. Every phone and computer has a built-in way to do each, and this guide gives each maker's own steps. The sizes are our engine's, measured on our 9.8 MB camera photo, our 1920 × 1280 reference photo and a real iPhone 12 Pro HEIC.Sahadat Husain
- GuidesImage URL, Copy image address, ChromeHow to copy an image URL in any browser or phoneTo copy an image URL, right-click the picture and choose Copy image address, or Copy Image Link in Firefox. On a phone, open the image in a new tab and copy the address bar. Then check which file you got: the same picture gave us three.Sahadat Husain
- GuidesJPG quality, Deep fried memes, PixelateHow to make an image low quality, or deep fry it: testedWant a picture that looks bad on purpose, for a meme, a placeholder or a smaller file? Here is what each method does, measured on one real photo.Sahadat Husain
- GuidesBlack and white, Grayscale, iPhoneHow to make a picture black and white on any deviceEvery phone, Photoshop and Word can turn a photo grey in a few taps. Here are the steps for each, and what a black and white copy does to the file.Sahadat Husain
- GuidesAI images, C2PA, Content CredentialsHow to tell if an image is AI-generated, tested on 8 AI imagesContent Credentials, metadata, watermarks and your own eyes each catch some AI images and miss others. Here is what each one found on 8 real AI images.Sahadat Husain
- GuidesEXIF, Metadata, GPSWhat is EXIF data? What your photo reveals, and how to remove itEvery phone photo carries a hidden record of the camera, the time and often the place. Here is what ours held, and how to see and remove it.Sahadat Husain
- GuidesAI metadata, C2PA, Content CredentialsHow to remove AI metadata from an image: 5 ways, testedAI tools write a made-by-AI tag, a signed C2PA record and sometimes your prompt into the file. Here is what removes all of it, tested on 8 real AI images.Sahadat Husain
- GuidesWhatsApp, HD, iPhoneHow to send high-quality photos on WhatsApp, measuredTo send high-quality photos on WhatsApp, tap HD in the photo picker so it shows a checkmark, or attach the photo as a Document to send the untouched original. Standard, the default, shrank our 12 MP iPhone photo to 2 MP. We measured all three.Sahadat Husain
- GuidesDPI, PPI, PrintDPI vs PPI: the difference, measured on one photoPPI counts the pixels per inch of an image file or a screen. DPI counts the ink dots a printer lays per inch. Apps store a file’s number 1:1 and label it DPI, so a “300 DPI” request means 300 PPI. We tagged one photo at 72, 150, 300 and 600 PPI: same pixels, same bytes, only the print size changed.Sahadat Husain
Guides