If you’ve ever opened a PDF with a screen reader and heard nothing but chaos, you already know why accessibility tagging is critical. Without proper tags, assistive technologies can’t interpret your document’s structure – meaning users with visual or cognitive disabilities are left out.
In this guide, you’ll learn exactly how to manually tag a PDF using PDFix Desktop Pro – from tagging headings and paragraphs to lists and complex structures – so your documents are not only accessible but professionally structured and ready for publishing.
Let’s dive in.
1. Getting Started in PDFix
Start by opening your PDF in PDFix Desktop Pro. From the sidebar, turn on the Tags Panel — your main workspace for monitoring tag structure. PDFix provides selection tools to help you tag efficiently:
- Object Tool – for selecting and tagging whole objects, such as text blocks, headings, or lists.
- Tag Tool – for managing tag structure
- Default Tool – for fine-grained control, letting you tag partial text segments.
- Table Tool – specialized for detecting and tagging table structures correctly.
The Object Tool is your go-to for most tagging tasks. Just click an element on the page, right-click, and choose the appropriate tag type.
2. Tagging Headings, Paragraphs, and Lists
Tagging Headings
To tag a heading, select it using the Object Tool, right-click, and choose Tag as Heading. You can then specify the level (e.g., H1, H2, H3).
Proper heading levels help screen readers navigate your document logically.
Tagging Paragraphs
To tag a paragraph:
- Use the Object Tool to select one or more text blocks.
- Right-click and choose Tag as Text.
You can also click and drag your mouse to select multiple objects – perfect for grouping full paragraphs or text blocks that belong together.
Tagging List
Tagging lists is as easy as tagging paragraphs:
- Select the list area using the Object Tool.
- Right-click → Tag as List.
PDFix automatically generates sub-tags for list items (<LI>) and separates bullets or numbering (<Lbl>), ensuring the structure reads correctly with screen readers.
Result:
A clean, hierarchical tag tree in the Tags Panel, showing List → LI → Lbl + LBody.
Managing Tag Structure and Placement
As you tag your PDF, always check the Tags Panel for structure accuracy. New tags appear directly below your current selection — but you can drag and drop tags to reposition them if needed.
Accessibility Reminder: Headers, footers, and decorative elements should be marked as artifacts so they’re ignored by assistive technologies.
Splitting Objects into Multiple Tags
Sometimes, a single text object contains different logical parts (like a heading followed by a paragraph). In that case:
- Switch to the Default Tool for letter- or word-level selection.
- Highlight the specific portion you want to tag differently.
- Right-click and apply the desired tag type.
This approach gives you precise control over nested or mixed structures (e.g., part of a sentence that should be tagged as a link or emphasized text).
Tagging Tables
Manual table tagging is often repetitive and prone to human error — especially in large or data-heavy PDFs. The latest PDFix Desktop Pro let you automate this process with smart layout templates, so you can:
- Scale table tagging across thousands of PDFs with one reusable template
- Save time on repetitive manual work
- Improve accuracy and consistency
- Ensure PDF/UA accessibility compliance
Result: One intelligent template can now recognize, tag, and structure all tables automatically – delivering consistent, accessible output at scale.
Learn More: How to Automatically Tag Complex PDF Tables with PDFix
Watch our on-demand webinar
Auto-Tagging as a Backup
- For lengthy or repetitive documents, auto-tagging can save hours
- Check out our companion guide for details: How to Automatically Tag a PDF
- After auto-tagging, you can always refine structure manually using the techniques above ensuring both efficiency and accuracy
What’s New in PDFix Desktop Pro 2025
PDFix continues to evolve to support faster and more accurate accessibility remediation. Here’s what’s new this year:
- Enhanced Table Detection: Smarter recognition of multi-column and nested table structures.
- Batch Auto-Tagging: Apply reusable tagging templates across multiple PDFs.
- Layout Recognition for Invoices & Reports
Together, these upgrades make PDFix Desktop Pro 2025 a complete toolkit for accessibility professionals and document remediation teams who care about precision, compliance, and productivity.
