Crop and export an image locally
Crop, then encode
The image studio opens a picture, lets you crop and adjust it, set a long edge or an exact pixel size, and export PNG, JPEG, or WebP. Use it when the frame is wrong or the file is heavier than the message allows. Compress starts on JPEG. WebP starts on WebP. Batch is a different page for many files and a ZIP. Do not use this studio to edit a PDF page. That is the PDF studio. A picture you want inside a PDF can be exported here and then placed with images to PDF.
The file stays in this browser. NexTool does not upload it and does not keep a copy after you leave the page. Download the result and check it before you send it on. If the tab runs out of memory, the job stops and the original is still the one on your computer.