PDF accessibility, without the extra work
Your PDFs.
We make them
accessible.
Legible turns your existing PDFs into documents screen readers can actually read, formulas included. Built to WCAG 2.1 AA and PDF/UA, and nothing about how they look changes.
Same document. A different experience.
Before
An untagged PDFThe friendship paradox
Why your friends seem more popular than you.
- Count everyone’s friends.
- Sample people, then friendship endpoints.
- Explain the gap between the averages.
k = number of friends; ⟨ ⟩ = average over people.
Five people. Three networks.
| Network | Per person | Via a friend* |
|---|---|---|
| Ring | 2.0 | 2.0 |
| Star | 1.6 | 2.5 |
| Complete | 4.0 | 4.0 |
*Sample a random endpoint of a random friendship.
Popularity gets counted more than once.
What a screen reader hears
“blank… The friendship paradox Why your friends seem more popular than you. Count everyone's friends. Sample people, then friendship endpoints… k 2 k equals k plus Var k k… graphic Ring 2.0 2.0 Star 1.6 2.5 Complete 4.0 4.0…”
Words are there. Structure is missing.
After Legible
Same look. Now accessible.The friendship paradox
Why your friends seem more popular than you.
- Count everyone’s friends.
- Sample people, then friendship endpoints.
- Explain the gap between the averages.
k = number of friends; ⟨ ⟩ = average over people.
Five people. Three networks.
| Network | Per person | Via a friend* |
|---|---|---|
| Ring | 2.0 | 2.0 |
| Star | 1.6 | 2.5 |
| Complete | 4.0 | 4.0 |
*Sample a random endpoint of a random friendship.
Popularity gets counted more than once.
What a screen reader hears
Heading level 1. The friendship paradox.
List, 3 items. Count everyone’s friends…
Formula. The average of k squared, divided by the average of k, equals the average of k plus the variance of k divided by the average of k.
Table, 3 columns, 4 rows. Row header: Star. Per person: 1.6. Via a friend: 2.5…
Hear the difference.
Audio transcript
Same look.
Legible adds structure underneath your PDF. Fonts, layout, and pages stay exactly as you made them.
Low-contrast text is the one exception: we'll suggest accessible colors and apply them with your approval.
No expertise required.
No manual tagging in Acrobat, no accessibility training. Send us the file and get the accessible one.
Built to WCAG 2.1 AA
and PDF/UA.
Every file is checked against both standards, with a report you can keep for your records.
How it works
Your file in.
An accessible file out.
- 01
Send us your PDF
Any PDF you already have.
- 02
We add the structure
Legible tags headings, reading order, lists, tables, formulas, and image descriptions.
Document title and language, too.
- 03
Get the accessible version back.
Plus a WCAG and PDF/UA report.
Let's make it readable
See it on your
own documents.
Tell us about your documents and we'll show you what Legible does with them.