PDF ADA Accessibility Editor

Instructions for use (click to expand)

Pick a workflow: Build New PDF to compose a simple tagged document from sections, or Upload Existing PDF to add structure to a file you already have.
Build: Under Section content, choose Paragraphs, Bulleted list, or Numbered list. Paragraphs preserve line breaks (blank line = new paragraph) and can include pasted Word-style bullets or numbers in the same block (indent nested rows with tab or two spaces per level). List-only mode still uses one item per line. The live preview reflects your title and sections; drag sections by the grip control to reorder; use Image max width to resize figures in both preview and exported PDF.
Upload: Choose your PDF — page previews load on the right (up to 15 pages for performance).
Tag by highlighting: Drag on a page preview to draw a rectangle around each block that needs a tag (headings, paragraphs, list rows, figures).
In the Highlight details panel, set the tag type, text or alt text, and for list items the List nesting level (reading order matters). Click Save highlight or Cancel.
Fill in accessible title, language, and optional remediation notes. Toggle Include remediation summary page if you want the export to append a summary page.
Click Save Tagged PDF to download the remediated file. Use Tab / Shift+Tab on the previews to move between regions; Enter or Space opens the editor for the focused region.

WCAG scope and export notes (click to expand)

When a PDF is web content (download link, button, or embedded viewer on your site), WCAG 2.1 AA applies to both the surrounding HTML/CSS (link purpose, focus, labels for controls that open the PDF, keyboard use, errors in custom viewers) and the accessibility of the PDF itself (real text, logical reading order, structure for headings and images, sufficient contrast, forms when present). W3C publishes PDF-specific guidance and techniques for document accessibility alongside the general WCAG criteria.

Exports apply WCAG-oriented PDF settings (document title shown in the viewer window where supported, catalog language, keywords, XMP PDF/UA part declaration, logical structure tree, tagged highlights). Full WCAG 2.1 Level AA for PDF-as-web-content still depends on your HTML (links, embedding, keyboard use), document content (contrast, tables, scans/OCR), and verification with your checklist or tools such as Acrobat’s accessibility checks or PAC—this app does not certify conformance.

Build New Accessible PDF

US Letter (8.5 × 11 in) with margins you choose below. Paragraphs preserve line breaks. Inline emphasis: [b]…[/b], [i]…[/i], [u]…[/u] in body, headings, and list lines. Lists export as nested L / LI / LBody (indent with two leading spaces per sub-level). Figures need alt text (WCAG-oriented).

Page layout & typography

Margins (padding from page edge)

Title alignment

Default heading alignment

Default body alignment

Font

Body size

Line spacing

Document title

Author

Document language

Subject

Include Accessibility Export Manifest pages at the end of the PDF (metadata summary)

Off by default. When enabled, the download appends a short manifest section to the document. The JSON attachment and tagged content are unchanged.

Content Sections

Drag a section by the grip (left) to reorder. The live preview updates as you type. Image width is a percentage of the text column in the exported PDF.

Upload and Remediate

Metadata, tags, and export. Page previews are on the right.

Existing PDF file

Draw a rectangle on a page preview first. Then set the tag and text below and click Save highlight. Tag consecutive regions as List item (in reading order). Set List nesting level (0 = main list, 1 = sub-list, 2 = sub-sub-list, …) so export builds nested L / LI / LBody trees in the PDF.

Accessible title (override)

Author (override)

Language

Remediation notes

Include remediation summary page

Uncheck to download the tagged PDF only, without the extra “Accessibility Remediation Summary” page at the end.

Saved tag manifest (inspectable)

PDF page previews

After you choose a file, previews load here. Drag to draw a highlight, then use the panel on the left to choose the tag, review or edit text, and save. Use Tab / Shift+Tab to move through each tagged region on the page previews (and Enter or Space to open the editor).