How to Combine HTML Files into One PDF

HTML pages are designed for browsers, not for sharing or archiving. When you need to distribute a set of HTML documents as a single file, converting and merging them into PDF is the most practical solution. PDF preserves the layout, fonts, and images regardless of the recipient's operating system or software.

PDF Combine Pro by CoolUtils lets you combine multiple HTML files into one PDF with full control over the output. Create a clickable table of contents, add bookmarks from file names, insert page numbers, apply Bates stamping, encrypt the result, or attach supplementary files. There are no limits on the number of HTML files for batch processing.

Why combine HTML to PDF?

• Universal format. PDF files open identically on Windows, macOS, Linux, and mobile devices. No browser compatibility issues, no broken CSS.
• Offline access. A combined PDF works without an internet connection. All images and styles are embedded in the file.
• Easy navigation. Bookmarks and a table of contents let readers jump between sections instantly, which is impossible with a folder of separate HTML files.
• Security. Protect the combined PDF with a password, restrict printing or copying, and add a digital signature for legal validity.
• Archiving and e-discovery. Corporate users rely on PDF for long-term storage and legal compliance. Bates stamping and sequential page numbering simplify document management.

Merge multiple HTML files into one PDF: step-by-step guide

1. Install PDF Combine Pro

Download the tool from the CoolUtils website. Click the "Download Now!" button to get the installer. Run it and follow the wizard. The application is lightweight and installs in under a minute. You can use the free trial version for 30 days with no limitations.

2. Select your HTML files

Open PDF Combine Pro. The folder tree on the left panel displays all directories on your PC. Navigate to the folder containing your HTML files and check the ones you need. You can select an entire folder to include all HTML files at once, or hand-pick individual files. Drag and drop items in the file list to set the desired page order in the output PDF.

3. Configure the output

Click the "Combine to PDF" button to open the settings wizard. Set the destination file path and adjust parameters:

• Table of contents — auto-generated from file names or document titles.
• Bookmarks — clickable navigation for each merged file.
• Page numbers and dates — add headers or footers with customizable placement.
• Bates stamping — sequential numbering for legal and corporate documents.
• Encryption — password-protect the PDF and set user permissions.

4. Start the merge

Click the "Start!" button at the bottom of the wizard. PDF Combine Pro converts each HTML file and joins them into a single PDF. The process handles hundreds of files in minutes. When finished, the output appears in the destination folder, ready to share, print, or archive.

HTML to PDF vs. online converters

Free online tools can merge a few HTML files, but they come with significant drawbacks: file size limits, upload queues, privacy concerns, and no control over bookmarks or page numbering. PDF Combine Pro runs entirely on your PC, keeps your data private, and handles thousands of files in one batch. It also supports mixed-format merging: combine HTML with DOC, DOCX, XLS, TIFF, JPEG, and other formats into a single PDF.

PDF Combine Pro Customer Reviews 2026

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