Welcome to the File Converter

Upload your file to start converting. Choose a file from your device or use a remote file link.

${shortenFileName(item.file_name)} ${formatBytes(item.file_size)}

Output:

Add ${items.length} files

Convert

How to Convert Chm to PDF?

Click the “Choose CHM Files” button and select your CHM file
Click on the “Convert” button to start the conversion
When the status changes to “Done”, click the "Download PDF" button

Convert Any CHM to PDF

This tool supports converting many types of Chm to PDF. Convert PDF, EPUB, MOBI, AZW3, FB2, HTMLZ, LRF, OEB, TXT AND RTF to PDF.

Best Chm Converter

Convert your Chm with perfect quality, size, and compression. Plus, you can also batch convert Chm using this tool.

Free & Secure

Our Chm Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.

What is a CHM file?

CHM (Compiled HTML Help) is a help file format developed by Microsoft, widely used for software documentation, eBooks, and technical manuals. It supports indexing, searching, and navigation features, providing an efficient online help system. CHM files compile multiple HTML pages into a single compressed file, reducing file size and improving load speed. Compared to traditional HTML files, CHM offers better organization and user experience, suitable for creating complex help documents and tutorials. Additionally, CHM files often include metadata (such as title, author, chapter information, etc.), facilitating management and search. It is widely used in software development, technical support, and personal creation, suitable for user manuals, technical documents, and various types of help files.

How to open and edit a CHM file?

Recommended tools to open CHM files: - Viewers: [Microsoft HTML Help Viewer](https://www.microsoft.com), available on Windows systems, providing a native viewing experience. - Third-party Viewers: [SumatraPDF](https://www.sumatrapdfreader.org/free-pdf-reader), lightweight and supporting multiple formats, suitable for cross-platform use. Regardless of the tool you choose, the process is straightforward: simply double-click the file or right-click and select 'Open'. If you need to convert a CHM file to another format, many tools provide powerful conversion features, such as using [Calibre](https://calibre-ebook.com/) for format conversion. Note that some DRM-protected CHM files may not be directly opened on non-official channels. For CHM files containing sensitive information, ensure you use encryption features to protect the file. Steps are as follows: 1. Use a tool that supports encryption (such as Calibre or a dedicated CHM editor). 2. Open the file and select 'File' > 'Save As' > 'Save as PDF'. 3. In the export settings, choose 'Security', set a password, and select encryption options.

https://en.wikipedia.org/wiki/Compiled_HTML_Help

https://www.microsoft.com

https://www.sumatrapdfreader.org/free-pdf-reader

https://calibre-ebook.com/

What is a PDF file?

PDF (Portable Document Format) is a file format developed by Adobe Systems for saving and transmitting documents, preserving the original formatting across different platforms. PDF files support text, images, links, form fields, video, and audio elements, making them suitable for e-books, reports, contracts, and various types of documents. Compared to traditional document formats, PDF offers better cross-platform compatibility and security, ensuring consistent viewing and printing on any device.

How to open and edit a PDF file?

PDF files can be opened and edited using various tools. The most popular choices include: - PDF readers: [Adobe Acrobat Reader](https://get.adobe.com/reader/) (officially recommended, supported on multiple operating systems), [Foxit Reader](https://www.foxitsoftware.com/pdf-reader/) (lightweight and feature-rich) - Online tools: [Smallpdf](https://smallpdf.com/), [ILovePDF](https://www.ilovepdf.com/) (online conversion and editing tools) Regardless of the tool you choose, the process is straightforward: simply double-click the file or right-click and select 'Open'. If you need to convert a PDF file to another format, many tools provide powerful conversion features, such as converting PDFs to DOCX, JPEG, etc., through Smallpdf or ILovePDF. Additionally, some tools offer editing capabilities like adding annotations, filling out forms, and signing PDFs. For PDF files containing sensitive information, ensure you use encryption features to protect the file. Steps are as follows: 1. Use a tool that supports encryption (such as Adobe Acrobat Pro or Foxit PhantomPDF). 2. Open the file and select 'File' > 'Protect' > 'Encrypt'. 3. Set a password and choose encryption options.