PDF Tools · Accessible Viewer
One script, an accessible viewer
Serve any PDF through an accessible in-browser reading experience - outline, read-aloud, summary, dictionary, translate and dark mode - added with a single line of code.
One-line embed
Read-aloud
40+ languages
Reading tools built in
A document everyone can read
The viewer adds the assistive features readers need - no plugin, no separate app, no download.
Document outlineJump between sections with a navigable table of contents.
Read-aloud (Text-Reader)Natural text-to-speech that highlights as it reads.
AI summaryA quick plain-language summary of long documents.
Dictionary & Ask-a-QuestionLook up terms or ask about the document in context.
Translate - 40+ languagesRead the document in the language the reader prefers.
Dark mode & text controlsContrast, spacing and dark mode for comfortable reading.
Design your viewer
Match your brand, grab the code
Set the colors, icon and position to match your site, then copy one line of code. Every PDF you link opens in your branded, accessible viewer - no per-document work.
Accent colour
<script src="https://cdn.equalweb.com/pdf-viewer.js" data-theme="teal"></script>
FAQ
Accessible PDF Viewer - frequently asked questions
How does the Accessible PDF Viewer work on my website?
EqualWeb's Accessible PDF Viewer is added with a single line of JavaScript. The script automatically detects every PDF link on your site, with no per-document markup, and when a visitor clicks one, the document opens in an accessible in-browser viewer instead of downloading. Content is presented as semantically structured, keyboard-navigable, screen-reader-friendly HTML, with the original file still available alongside.
What reading tools are built into the viewer?
EqualWeb's Accessible PDF Viewer includes a navigable document outline, a read-aloud Text Reader that highlights text as it reads, an AI-generated summary, a click-to-define dictionary, an Ask-a-Question tool for the document's content, translation into 40+ languages, and display settings covering dark mode, font size, line height and letter spacing. No plugin, separate app or download is required.
Can I customize the PDF viewer to match my brand?
Yes. EqualWeb's Design Your Viewer panel lets you set the viewer's colors - including the accent, header and menu colors - and choose which menu tools appear, so the reading experience matches your site. Once configured, you copy a single embed line and every PDF you link opens in your branded, accessible viewer with no per-document work.
Can visitors still download the original PDF?
Yes. The original PDF always remains available alongside the accessible web version, so readers choose the format they prefer. From EqualWeb's Accessible PDF Viewer they can switch between the web view and the PDF, download either the original file or the accessible HTML version, and print directly from the viewer.
Do my PDFs need to be converted before the viewer can show them?
Yes. Documents are processed through EqualWeb's web view conversion, which turns each PDF into semantically structured, accessible HTML that the viewer serves in the browser, with proper headings, tables, reading order and ARIA markup. You upload PDFs or import them from your site, select web view conversion, and once processed your linked PDFs open in the accessible viewer.
Accessible viewer
Serve every PDF accessibly
Add one script and turn every document on your site into an accessible reading experience.