Practical file guides
A few settings. A lot less guesswork.
Short guides for upload limits, image dimensions, file formats, metadata and reviewing a finished PDF. Read what you need, then try the tool.
Image compression without the guesswork
Understand how compression, pixel dimensions and file formats affect KB and MB limits and visible quality.
Read guide GuideResize images without stretching them
Learn when to resize, crop or keep the aspect ratio, and how common sizes such as 1080 × 1080 and 1920 × 1080 differ.
Read guide GuideJPG, PNG or WebP? Choose by content and destination
Compare JPG, PNG and WebP for photos, transparency, screenshots, compatibility and websites.
Read guide GuideWhat can be hidden inside an image file?
Learn what EXIF and other image metadata can contain, what removing it changes, and what to check before sharing a photo.
Read guide GuideTurn a stack of images into a PDF people can actually use
Prepare scans and photos before combining them, so the PDF is clean, readable and easy to send.
Read guide GuideA safer way to edit and finish a PDF
A practical checklist for editing, signing, organizing and reviewing a PDF before you share it.
Read guideWhy the guides are here
Each guide explains the tradeoff behind a tool setting, and what a tool cannot do. Converting a JPG to PNG, for example, will not recover detail already lost to compression. The tools do the work. The guides help you make the choice.