Sometimes this method is called “Bicubic”. This usually gives the best result, but it naturally takes more time. What does this mean? Basically, GIMP will discard any unused pixels in order to reduce the image.Ĭubic - The color of each pixel is computed as the average color of the eight closest pixels in the original image. First, we can change the resolution by typing in 72 and then, we can change the pixel dimensions by entering 600 x 400 as the width and height.īefore we finish, we will want to select our resampling method.
Let's say that we want to put this image on our website, so we want it to be only 600 x 400 pixels and with a resolution of 72ppi. A Scale Image dialog box will appear like the one pictured belowĤ. Enter new Image Size and Resolution values With GIMP open, go to File > Open and select an imageģ. One may need to reduce the size of an image because the resolution is too high for web, the file size is too large to e-mail, or only a small image is required for a printed piece.ġ. The process of reducing the size of an image in GIMP is only slightly different than when enlarging. How to Reduce the Size of an Image Using GIMP In this example, we enlarged our image by increasing the image size from 10" x 6.667" to 12" x 8". Sinc (Lanczos3) - The Lanczos3 method uses the Sinc mathematical function and performs a high quality interpolation.Ĭongratulations! You have successfully enlarged an image! What does this mean? Basically, GIMP will have to create new pixel information in order to enlarge the image.Ĭubic - The color of each pixel is computed as the average color of the eight closest pixels in the original image. In this example, we increased the document width from 10" to 12" and the height from 6.667" to 8". We want to keep the 300 resolution, so all we need to do is type in image size dimensions. Lets say we wanted to enlarge this image to a 12" x 8" so that it can easily be printed and framed. Enter new Image Size or Resolution values A Scale Image dialog box will appear like the one pictured belowĤ. To see the Image Size in inches or a value other than pixels, use the drop down beside the valuesĥ. (Follow along by right-clicking on the tiger image above and saving it!)ģ. Compressing images with the website is free for everyone and we like to keep it that way! If you like TinyPNG please contribute by making a donation.Note: When enlarging images, it is recommended to clean up dust and scratches or any noise before enlarging because these items may be magnified in your enlarged image. In 2014 we added intelligent compression for JPEG images and in 2016 we added support for animated PNG. We created TinyPNG in our quest to make our own websites faster and more fun to use with the best compression. Why did you create TinyPNG?Įxcellent question! We frequently use PNG images, but were frustrated with the load times. It allows you to scale, preview and save compressed PNG and JPEG images straight from Photoshop. You can also install the TinyPNG Photoshop plugin. We’ll convert them to tiny indexed PNG files. You can use Save for Web to export your images as 24-bit transparent PNG files and upload them to TinyPNG. With other versions it is impossible and Photoshop CS5 cannot even display them properly. What about Photoshop?Įxcellent question! Only Photoshop CC 2015 or newer can save images as indexed PNG files with alpha transparency. If you want to create and compress stickers under 500 KB take a look at the iMessage Panda sticker example on Github. Only Interned Explorer does not support the format yet.Īpple added animated stickers to iMessage with the release of iOS 10. Binary transparency without any workarounds! Is it safe to use animated PNG?Įxcellent question! Chrome, Firefox, Safari and now Microsoft Edge all support APNG. With TinyPNG the background becomes transparent again. Still need to support Internet Explorer 6? It normally ignores PNG transparency and displays a solid background color. Is it supported everywhere?Įxcellent question! The files produced by TinyPNG are displayed perfectly on all modern browsers including mobile devices. I have excellent eyesight but can’t spot the difference either! Use the optimized image to save bandwidth and loading time and your website visitors will thank you. In the above image the file size is reduced by more than 70%.
The result better PNG files with 100% support for transparency.
All unnecessary metadata is stripped too. By reducing the number of colors, 24-bit PNG files can be converted to much smaller 8-bit indexed color images. File size 57 KB vs Shrunk transparent PNGĮxcellent question! When you upload a PNG (Portable Network Graphics) file, similar colors in your image are combined.