CHM to PDF Converter
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What is a CHM file?
CHM (Compiled HTML Help) is a proprietary help file format developed by Microsoft. It consists of compressed HTML documents, images, and navigation tools used to create interactive help systems for software.
CHM files are most commonly found in Windows applications and support features like full-text search, indexing, and hyperlinking. Although it’s an older format, it's still widely supported in technical documentation.
How to open CHM files
CHM files can be opened on Windows with the built-in Microsoft HTML Help Viewer. On other platforms, use CHM viewers like xCHM, KchmViewer, or Calibre.
Use AnyConv to convert CHM files to PDF or HTML if you want to read them on unsupported devices or browsers.
Key facts about CHM
- Full name: Compiled HTML Help File
- Extension: .chm
- MIME type: application/vnd.ms-htmlhelp
- Developed by: Microsoft
- Initial release: 1997
Useful links and resources
What is a PDF file?
PDF (Portable Document Format) is a widely-used file format developed by Adobe to present documents independently of software, hardware, or operating system. It maintains the layout, fonts, and images of the source file.
PDF is ideal for printing, archiving, and sharing due to its consistency and support across virtually all platforms. It supports multimedia, forms, and encryption, making it a versatile choice for both simple and complex documents.
How to open PDF files
PDF files can be opened with any modern browser or dedicated reader like Adobe Acrobat Reader. Many word processors and e-readers also support this format.
Use AnyConv to convert PDF files to DOCX, JPG, or TXT depending on your needs.
Key facts about PDF
- Full name: Portable Document Format
- Extension: .pdf
- MIME type: application/pdf
- Developed by: Adobe Systems
- Initial release: 1993
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❓ Frequently Asked Questions
- Do I need to register to convert CHM files?Not at all! You can convert CHM to PDF without signing up or installing anything.
- Is it safe to convert CHM to PDF on AnyConv?Absolutely. All CHM and PDF files are securely handled and automatically deleted after 1 hour. Nobody can access your data.
- Will the quality change after converting CHM to PDF?We do our best to preserve the original quality during CHM to PDF conversion. The result is accurate and clean.
- How long does it take to convert CHM to PDF?Most conversions from CHM to PDF take just a few seconds — even for larger files.
- Can I upload more than one CHM file?Yes, batch conversion is supported. You can convert multiple CHM files to PDF at once — fast and easy.
- What browsers support CHM to PDF conversion?All modern browsers! Chrome, Firefox, Safari, Edge — AnyConv runs online and supports converting CHM to PDF on any platform.