https://filesanity.com/blog Notes on the metadata inside photographs, Office documents and PDFs, and how FileSanity removes it in the browser. en-gb https://filesanity.com/blog/before-you-send-a-file-to-a-stranger https://filesanity.com/blog/before-you-send-a-file-to-a-stranger Sun, 20 Sep 2026 00:00:00 GMT Which metadata fields matter most for journalists, lawyers, HR and marketplace sellers, and the two-minute routine that catches them before the file goes. https://filesanity.com/blog/why-the-file-never-leaves-the-browser https://filesanity.com/blog/why-the-file-never-leaves-the-browser Sat, 19 Sep 2026 00:00:00 GMT A page can read bytes from a file and write a new one with no server. How the File API, byte-range reads and Blobs do it, and how the network panel shows it. https://filesanity.com/blog/what-a-jpeg-carries https://filesanity.com/blog/what-a-jpeg-carries Fri, 18 Sep 2026 00:00:00 GMT EXIF, XMP, IPTC, Photoshop resources and comments: the five places a JPEG stores metadata, what each says about you, and what FileSanity removes and keeps. https://filesanity.com/blog/what-office-documents-carry https://filesanity.com/blog/what-office-documents-carry Thu, 17 Sep 2026 00:00:00 GMT A .docx, .xlsx or .pptx is a zip of XML parts, and three are about you: core, app and custom properties. Plus a thumbnail, zip timestamps and comment authors. https://filesanity.com/blog/what-a-pdf-carries https://filesanity.com/blog/what-a-pdf-carries Wed, 16 Sep 2026 00:00:00 GMT Where a PDF keeps its author, software and dates, the Info dictionary and the XMP packet. FileSanity blanks both in place, and says what it cannot reach.