CONVERT TO PDF
CHM to PDF — Convert CHM Help Files to PDF
Convert a CHM (compiled HTML Help) file into a readable PDF. This niche Windows format needs dedicated parsing — the tool is being rebuilt.
This tool is being rebuilt
We are rebuilding this tool to run entirely in your browser — faster and more private. It will be back shortly.
CHM (Compiled HTML Help) is Microsoft's old help-file format — a bundle of HTML pages, images, and an index compiled into a single file that opens natively only on Windows. It powered the built-in help of a lot of older software, and it's increasingly awkward to open on anything modern.
Converting it to PDF makes that content readable, searchable, and archivable on any device. Doing it well means unpacking the compiled container, reading its internal HTML topics and navigation, and reassembling them in reading order — dedicated parsing for a niche, dated format. That specialised handling is why this tool is being rebuilt rather than offered as an instant browser conversion; how cleanly it reconstructs depends on how the original CHM was authored.
Frequently asked questions
- Why does CHM conversion need special handling?
- A CHM is a compiled container, not a plain document. Converting it means unpacking that container, reading its internal HTML topics and navigation, and reassembling them in order — dedicated parsing for a niche format, which is what's being built.
- Why convert CHM to PDF at all?
- CHM is awkward outside Windows and increasingly unsupported. A PDF makes the same help content readable on any device, easy to search, and simple to archive long after the original program is gone.