Articles and guides
Short, practical guides for everyday tasks with PDF files and photos. Each one explains the idea in plain language and points to the free tool that does the job in your browser.
How to reduce the size of a PDF without ruining itWhy PDF files get so big, how to pick a realistic target size, and how to compress a PDF while keeping it readable.Read the guidePhoto for documents under 100 KB: pixels and kilobytes explainedWhat the size requirements for a document photo really mean, how to take a good source picture and how to fit a KB limit.Read the guideHow to merge and split PDF files: a practical guideWhen to combine PDFs and when to split them, how to keep the right order, and what to check afterwards.Read the guideHEIC or JPG: what is the difference and how to convertWhy iPhone photos are saved as HEIC, why some sites reject them, and how to get ordinary JPG files.Read the guideAre online PDF tools safe? How to check before you uploadHow online PDF tools handle your files, how to tell whether a file is uploaded, and simple steps to reduce the risk.Read the guideHow to sign a PDF online: draw your signature and place itA simple way to sign a PDF without printing, what kind of signature it is, and tips for a clean result.Read the guide