Roath park conservation area

Oakfield street conservation area

St Fagans conservation area

Rhiwbina Garden Village 

Pierhead conservation area

Tredegarville conservation area

Cardiff road conservation leaflet

Pentyrch conservation area

tredegarville conservation leaflet

Cathedral road conservation leaflter

Ensure the first heading in PDF documents is marked as Heading Level 1 (H1) for accessibility.

## What this means

In a well-structured PDF, the very first heading should be a Heading 1 (H1), which typically represents the main title or the most important heading in the document. This is similar to the primary heading on a webpage, setting the context for the content that follows.

## Why it matters

1. **Accessibility**: For screen reader users, an H1 heading is the primary entry point to understand what the document is about. It's crucial for navigating and comprehending the content.
2. **Document Structure**: The H1 heading sets the stage for the document's structure, much like a book's title. It helps in organizing the content logically.
3. **Search Engine Optimization**: For documents available online, having a clear H1 heading can aid in search engine recognition and ranking.

## How to fix

1. **Review Your Document**: Open your PDF and check the first heading. It should be marked as H1, clearly indicating the main topic or title of the document.
2. **Edit if Necessary**: If the first heading is not H1, use a PDF editing tool to change the heading level. Ensure that it is prominently styled and stands out as the main title.
3. **Maintain Hierarchy**: After setting the H1, ensure that subsequent headings follow in a logical hierarchical order (H2, H3, etc.).

## Testing Methodology

Silktide's identifies the first heading (if any) and verifies 
if it is correctly marked as H1.

### Limitations
- **Styling vs. Tagging**: Silktide detects headings based on tagging, not styling. A visually prominent heading might not be detected as H1 if not tagged correctly.
- **Document Variations**: In some documents, like research papers, the first heading might not be the main title. Silktide's check assumes standard document formatting.

## Further Reading

- [PDF9: Providing headings by marking content with heading tags in PDF documents](https://www.w3.org/TR/WCAG20-TECHS/pdf.html#PDF9)
- [PDF Accessibility - Headings](https://www.adobe.com/accessibility/pdf/pdf-accessibility-overview.html)
- [WCAG Guidelines on Headings](https://www.w3.org/TR/WCAG21/#headings-and-labels)

pdf-headings-h1-first

December 2025

November 2025

Cardiff Council

	Title / URL	Issues
	Roath park conservation areawww.caerdydd.gov.uk/ENG/resident/Planning/Documents/Roath%20Park-L.pdf	1
	Oakfield street conservation areawww.caerdydd.gov.uk/ENG/resident/Planning/Documents/Oakfield%20Street-L.pdf	1
	St Fagans conservation areawww.caerdydd.gov.uk/ENG/resident/Planning/Documents/St%20Fagans-L.pdf	1
	Rhiwbina Garden Village www.caerdydd.gov.uk/ENG/resident/Planning/Documents/Rhiwbina-L.pdf	1
	Pierhead conservation areawww.caerdydd.gov.uk/ENG/resident/Planning/Documents/Pierhead-L.pdf	1
	Tredegarville conservation areawww.caerdydd.gov.uk/ENG/resident/Planning/Documents/Tredegarville-A.pdf	1
	Cardiff road conservation leafletwww.caerdydd.gov.uk/ENG/resident/Planning/Documents/Cardiff%20Road-L.pdf	1
	Pentyrch conservation areawww.caerdydd.gov.uk/ENG/resident/Planning/Documents/Conway%20Road-L.pdf	1
	tredegarville conservation leafletwww.caerdydd.gov.uk/ENG/resident/Planning/Documents/Tredegarville-L.pdf	1
	Cathedral road conservation leaflterwww.caerdydd.gov.uk/ENG/resident/Planning/Documents/Cathedral%20Road-L.pdf	1

Ensure the first heading in a PDF is a H1

Cardiff Council

Where this issue has occurred