![]() If($mime='image/jpg' || $mime='image/jpeg' || $mime='image/pjpeg') It will scale down or up an image to the maximum width or height function createThumbnail($image_name,$new_width,$new_height,$uploadDir,$moveToDir) ![]() $moveToDir - Directory to save the resized image $uploadDir - Directory of the original image $new_height - Height of the resized photo (maximum) $new_width - Width of the resized photo (maximum) These are the parameters it needs: $image_name - Name of the image which is uploaded ![]() I've copied it below, might need a bit of tinkering! (It does required the GD library) I had written a peice of code like this for another project I've done. 160 x 236 (rounded) is the correct answer. We do the math according to the solution proposed by PHP.net: It is better (as it maintain the aspect ratio), but it exceeded the maximum accepted width. The next solution proposed is the following: if($old_x < $old_y) Let's do some math taking the accepted solution: if($old_x < $old_y) Let's say we have an image of 1630 x 2400 pixels that we want to be auto resized keeping the aspect ratio to 160 x 240. There are other answers (with examples) on stackoverflow to similar questions (the same question formulated in a different manner) that suffer of the same problem. Please note the relevant lines from the example given on PHP.net website: $ratio_orig = $width_orig/$height_orig Any calculation should reflect this difference. The reason is simple: there will be cases when the ratio of the source image and the ratio of the destination image will be different. The default options in Image Resizer for Windows are suitable for most situations, but if you need more control over your batch image resizing and format conversions, you can click on the Advanced Options button in the utility’s interface.Actually the accepted solution it is not the correct solution. Now, my images are the desired size and I’ve also saved quite a bit of space with most images seeing a greater than 10x reduction in file size. In the case of file 3, however, it didn’t resize the image because its original dimensions were already smaller than 1600 pixels. ![]() With everything set, just click Resize and you’ll have your new batch resized images waiting for you.Īs you can see in the screenshot above, based on the Dimensions column in File Explorer, the utility resized my images so that the largest dimension is no longer than 1600 pixels. I also enabled the option to avoid resizing pictures that are smaller than my desired maximum size. By default, the utility creates new copies of the images to resize, preserving the originals, but you can elect to replace the originals instead if you’re sure you won’t need them later.īack in the example above, I set the pixel size to 1600 x 1600, with the Fit option selected so that my files will retain their original aspect ratio. Once it’s installed, you’ll see its options in the context menu when you right-click on image files.īeyond setting a desired pixel size, you can also choose to make pictures smaller but not larger, which avoids enlarging small images and degrading their image quality. To get started, head over to the Image Resizer for Windows website to download and install the application. ![]() Resize Multiple Images with Image Resizer for Windows Here’s how to use it so that you, too, will never have to resize multiple images by hand again. One of our favorites is Image Resizer for Windows, a nifty app that integrates directly into your right-click menu and offers a number of powerful options for image resizing and format changes. But if you need to resize multiple images, this manual one-by-one method is incredibly time-consuming and inefficient.While there’s no simple way to resize multiple images using the built-in tools in Windows 10, there are a number of free third-party utilities that can do it for you. If you want to resize a single image in Windows, you could open it in an application like Paint or Photos and make the change manually. How to Batch Resize Multiple Images in Windows 10 ![]()
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