00 / blog
Guides on file formats, conversions, and picking the right format for the job.
Images
WebP is usually smaller than PNG, but not always, and PNG still wins in some places. A clear rule for choosing, real file-size tests, and how to convert both ways.
Oct 8, 2026
Documents
Why converting a PDF to Word breaks layouts, which PDFs convert well and which don't, what Ident Convert keeps, and better options when you need the exact design.
Audio
How MP3, WAV and FLAC differ in quality, file size and compatibility, which one to pick for music, editing and sharing, and what converting between them can and cannot do.
Video
Why MKV videos won't play on iPhones, TVs and in browsers, how MKV and MP4 really differ, and how to convert MKV to MP4 online or with a free desktop tool for big files.
How to turn a Word document into a PDF that looks the same everywhere: the quick online way, why fonts sometimes shift a line, and what to check before you send it.
Fonts
A plain guide to font formats: what TTF, OTF, WOFF and WOFF2 are, which one to install on a computer, which one to put on a website, and how to convert between them.
What changes when you convert a Word document to PDF versus PDF back to Word, what usually breaks, and how to pick the right direction for your file.
Sep 30, 2026
Why WebP images from websites won't open in some apps or upload forms, how WebP compares to JPG and PNG, and how to convert it in a few seconds.
How to pull the audio out of an MP4 video and save it as an MP3 — useful for presentations, lectures, and interviews you recorded yourself.
Why iPhone and QuickTime videos save as MOV, why some sites and apps reject them, and how to convert MOV to MP4 while keeping the original quality.
How to turn a JPG photo, scan, or receipt into a PDF document, what happens to image quality, and whether you can combine multiple images into one file.
Why iPhone photos save as HEIC, why some sites and apps reject them, and how to convert HEIC to JPG in a few seconds without changing your camera settings.
Why HEIC photos from your iPhone show up as broken thumbnails on Windows or won't attach to an email, and how to convert them to JPG in seconds.