How to convert CHM files to PDF online?

Step 1.

Upload CHM-file

Click "Choose File" button to select a chm file on your computer. CHM file size can be up to 50 Mb.
Step 2.

Convert CHM to PDF

Click "Convert" button to start conversion.
Step 3.

Download your PDF

Let the file convert and you can download your PDF file right afterwards.

Information about CHM and PDF file formats

Name CHM PDF
Full name CHM - Microsoft Compiled HTML Help PDF - Portable Document Format
File extension .chm .pdf
MIME type application/vnd.ms-htmlhelp application/pdf, application/x-pdf, application/x-bzpdf, application/x-gzpdf
Developed by Microsoft Adobe Systems
Type of format Document file format Document format
Description Microsoft Compiled HTML Help is a Microsoft proprietary online help format, consisting of a collection of HTML pages, an index and other navigation tools. The files are compressed and deployed in a binary format with the extension .CHM, for Compiled HTML. The format is often used for software documentation. The Portable Document Format (PDF) is a file format used to present documents in a manner independent of application software, hardware, and operating systems. Each PDF file encapsulates a complete description of a fixed-layout flat document, including the text, fonts, graphics, and other information needed to display it.
Technical details Help is delivered as a binary file with the .chm extension. It contains a set of HTML files, a hyperlinked table of contents, and an index file. The file format has been reverse-engineered and documentation of it is freely available. CHM files support the following features: data compression, built-in search engine, ability to merge multiple .chm help files, extended character support. The PDF combines three technologies: A subset of the PostScript page description programming language, for generating the layout and graphics. A font-embedding/replacement system to allow fonts to travel with the documents. A structured storage system to bundle these elements and any associated content into a single file, with data compression where appropriate.
Associated programs Sumatra PDF, HTML Help Workshop Adobe Acrobat, Adobe InDesign, Adobe FrameMaker, Adobe Illustrator, Adobe Photoshop, Google Docs, LibreOffice, Microsoft Office, Foxit Reader, Ghostscript.
Wiki https://en.wikipedia.org/wiki/Microsoft_Compiled_HTML_Help https://en.wikipedia.org/wiki/Portable_Document_Format