Extract Images From PDF Not Working? Vector Art, Scans and Fixes
An image extractor finds nothing because most charts and logos in a PDF are drawn as vector shapes, not stored as pictures. Five ways to get them out, compared.
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Discover helpful tutorials, guides, and tips for file conversion, document processing, and productivity tools.
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I Tested 7 Ways to Password Protect PDFs - Here's What Actually Works
After testing Adobe, Preview, online tools, and command-line options, I found massive differences in security levels, privacy, and usability. Some methods are basically useless. Here's what I learned.
JPG to PNG Transparent Background Still White? Why and How to Fix
Converting a JPG to PNG never removes the white box, because a JPG has no transparency to carry over. Five ways to actually cut the background out, compared, plus how to spot a fake checkerboard PNG.
Latest Posts
Strikethrough Text Not Working? Why It Breaks and Where It Works
Crossed-out text you paste is letters plus invisible combining marks. Why it vanishes or looks wrong on Instagram, Discord and Reddit, and what works where.
ChatGPT Export conversations.json Is Unreadable? How to Open It
Your ChatGPT export arrives as one huge conversations.json, or several numbered files. Here's how to open it, read its message tree and find a lost chat.
Claude Watermark in Your Text? It Isn't the Hidden Characters
Newer Claude models do watermark their text, but in the word choices, with no hidden characters added. Here's what a checker can find, what it can't, and what a clean result really tells you.
PNG to JPG Turned the Transparent Background Black? Why, and How to Get White
A transparent PNG saved as JPG comes out with a black (or stranger) background. Our logs, six test conversions and the PNG spec explain why, and how to get white instead.
Link Extractor Missing Links? How to Extract All Links From a Website
Most link extractors read the HTML a server sends and never run the page's JavaScript, so menus, lazy-loaded lists and click handlers drop out. Five ways to extract all links from a website, compared honestly, and when a sitemap beats a crawl.
Old WMA Files Won't Convert to MP3? DRM Licenses, Corrupt Rips and What Still Works
Most old WMA files convert to MP3 without a fuss. The ones that don't usually carry a Windows Media DRM license, came from a rip that never finished, or aren't WMA at all. How to tell which one you have, and what still works for each.
EPUB to PDF Ruins the Layout? Why It Happens and What to Set
An EPUB has no pages, so every EPUB to PDF converter has to invent them. Here's why the layout breaks, and the page size, margin, font and cover settings that fix it.
Nested JSON to Excel Comes Out Blank or Messy? Flatten It First
Excel cells hold one value each and JSON nests objects inside objects. Here's why nested JSON to Excel goes wrong, and the flattening rules that give you clean columns.
OGG Won't Play? What 1,078 OGG to MP3 Conversions Show
We looked at 1,078 OGG to MP3 jobs on this site. 96% came from Windows, not iPhones, and three out of four MP3s came out bigger than the OGG they replaced. Here's why, and when you can skip the conversion entirely.
MP3 to OGG for Games and Discord Bots: When the Engine Wants OGG and Which Settings Work
Whether you should convert MP3 to OGG depends on where the file is going. Godot keeps your OGG as is, Unity re-encodes it anyway, Minecraft Java accepts nothing else, and Discord bots want Opus, not Vorbis.
Markdown to PDF Breaks Your Tables and Code Blocks: What Survives and How to Fix It
The preview looks right and the PDF doesn't. That's two Markdown parsers disagreeing. Here's what happens to tables, fenced code, nested lists, task lists, headings and images when Markdown goes to PDF, and the small edits that fix each one.