Guides
Short, practical answers about PDF and image files, with the free tool that does the job.
- How to reduce PDF file size Why PDFs get so big and how to make them smaller: compress in your browser, lower the resolution, split the file, or shrink the images first.
- How to merge PDF files Combine several PDFs into a single document in your browser, in the order you want, without uploading anything.
- How to convert JPG to WebP What WebP is, why it makes images smaller, how to convert JPG to WebP in your browser, and when to keep the JPG instead.
- How to compress a PDF without losing quality Shrinking a PDF always costs some detail. Here is how to keep it unnoticeable, which settings to use, and when not to compress at all.
- How to make a photo under 100 KB for a form Forms and portals often cap photos at 100 KB or 200 KB. Here is how to get under the limit without guessing: set a target size, and resize first if needed.
- How to open iPhone HEIC photos on Windows iPhone photos saved as HEIC often will not open or upload on a PC. Convert them to JPG in your browser, or switch the iPhone camera to save JPG.
- How to turn photos into one PDF Combine photos, scans or screenshots into a single PDF in your browser: put them in order, choose the page size, and keep the result small enough to send.
- How to delete pages from a PDF Remove blank or unwanted pages from a PDF in your browser. Choose the pages to keep, rotate any that are sideways, and download the new file.
- PNG vs JPG vs WebP: which one should you use A plain guide to image formats: when PNG, JPG, WebP or AVIF is the right choice, what each one is good at, and how to switch between them in your browser.