Make your PDFs more accessible in minutes, right within your browser.

Built by GrackleDocs, the trusted name in digital accessibility.

Grackle PDF is a browser-based tool that helps anyone make a PDF more accessible for end-users in minutes. Upload your document and let us auto-tag it. We do the heavy lifting, so you can uplift every user.

Easy to use • Streamlined and efficient • Private & Secure

Start Upgrading Your PDFs

Ready to make your PDFs more accessible today?

  • Simple steps, real progress.

    For anyone who’s been told their document needs to be accessible, Grackle PDF keeps it simple. Upload your PDF, let us auto-tag it, and download your file with significantly improved usability. If you need to dive deeper, open the built-in editor for a closer look. No software tutorials or specialized accessibility background required.

  • Fast and intuitive.

    Move through your document quickly. The auto-tag feature confirms high-confidence elements like standard text and body content, and only flags the items that actually need a human eye. No more guessing which fixes to prioritize. What used to take hours of manual review now takes minutes.

  • Accessibility for the real world.

    Grackle PDF improves PDF usability for people using screen readers, alt text, and key structural tags. If your document needs a more defensible compliance deliverable or formal attestation, Grackle PDF Desktop, included with your Grackle PDF plan, gives you the robust practitioner-level tools to perform detailed manual fixes, verify tagging, and generate full reports. 

Trusted by organizations across the globe making PDF accessibility simple and effective.

Fast, AI-powered auto-tagging that makes real accessibility progress on every PDF, no protocol expertise required.
Explore Grackle PDF
Curious what Grackle PDF can do for your documents? Get the full breakdown in our infosheet. 
• Instant Auto-Tagging
• Point-and-Click Reading Order
• One-Click Accessible Export
• Plain-Language, Simple & Intuitive
• 100% Browser-Based, No Installs
Access the Infosheet
Thumbnail for the Grackle PDF info sheet

Who is Grackle PDF for?

  • Communications & Operations 

    Communications staff who need documents made more usable, fast
    Stop struggling with expert-level software or overwhelming compliance reports. Turn a single PDF into a screen-reader-usable document in minutes, using simple, plain-language prompts.

    Plain language throughout, so getting it done doesn’t mean learning new terminology first

    • Publish on schedule with a document your whole audience, screen reader users included, can actually use
    • Specialized Wizards for structure, tables, and images.
    • No need to wrestle with expert-level software or a formal compliance report for a single document
  • Education & Community Programs 

    School staff who need usable materials, on demand
    Create materials that work better for everyone in your community. Upload your document, review image descriptions and headings, and download an improved PDF.
    • Materials that genuinely work for every member of your community, including screen reader users
    • Keep materials current whenever your community needs something new, without a big production lift each time
    • A head start on tagging, structure and reading order with no background required, empowering workplaces and end-users alike
  • Operational & Public Sector Staff 

    Administrative staff fielding PDF requests
    Complete tasks with ease whenever a document request lands on your desk. Get straight to work without complicated manuals or setup delays.
    • Handle a request the moment it lands on your desk, on whatever device you’re using, no procurement or IT project required

    • Room to grow into Grackle PDF Desktop as your organization’s needs get more complex

    • No per-seat or per-document limits, we offer unlimited access without an upfront commitment.

Designed for busy teams. Built for fast results.

Everything you need to make a PDF usable without opening a complex tag editor.
  • Automated Tag Tree Generation

    Drop any PDF directly into your browser to begin immediately. Skip software installations, file conversions, and convoluted setup steps so you can focus straight on document usability. 

  • Visual Reading-Order Editor

    Reorder headings, text, and images using a simple point-and-click preview. Adjust document flow exactly as a screen reader will announce it, completely eliminating the need to navigate raw code or complex tag trees. 

  • One-Click Export to PDF

    Finalize your accessible document instantly. Generate a polished, ready-to-share PDF complete with structured tags, intuitive navigation, and alt text in just a single click.

  • Fast, Intuitive Review Interface

    Move through your document in a clean, uncluttered interface built for speed. See what needs attention, make your call, and move on, without digging through menus or technical settings.

  • AI Auto-Detection & Automated Confirmation

    Automated detection identifies headings, tables, lists, and images. High-confidence structural parts are confirmed by default, leaving only quick human checks for you.

  • Plain Language UI & AI-Suggested Alt Text

    Work in an intuitive environment free of technical acronyms or complex standards code. Get AI-generated alt text suggestions for images to edit or accept in seconds.

Frequently Asked Questions

  • How long will it take to create a more accessible PDF?

    Minutes. Instead of spending hours manually tagging tags, reading order, and tables in heavy design software, Grackle PDF automatically processes and structures your document almost instantly. You get a dramatically more accessible file, leaving you only with quick, high-level decisions (like verifying alt text) rather than starting from a blank page.

  • What does an accessible PDF actually look like?

    Accessibility happens behind the scenes in the document’s structure. An accessible PDF contains hidden tags, logical reading order, and clear content hierarchies that allow assistive technologies like screen readers or screen magnifiers to announce headings, tables, and images accurately. To your end-readers, your document maintains its exact branding, fonts, and styling while becoming seamlessly usable for everyone. 

    How does the AI auto-confirmation work?

    Our AI auto-tags most of your document for you – structural elements like paragraphs, tables, lists, and captions, so you’re not starting from scratch. It leaves you as the human in the loop to review the results and make the contextual calls, like image alt text or reading order, that need a person’s judgment.

  • Will this tool certify that my PDF is 100% legally compliant?

    No, and we’re upfront about that. Grackle PDF is a tool designed to drastically improve your PDF accessibility. It doesn’t certify, guarantee, or attest to full legal conformance standards. If you need an audit-defensible compliance deliverable, Grackle PDF Desktop, included with your Grackle PDF plan, is built for exactly that and takes it from here.

  • Do I need to install any software?

    Grackle PDF is a web app with no installation, software permissions, or browser plugins required. Just open a modern browser on Mac, Windows, ChromeOS, or Linux and get started.

    If your workflow calls for something more robust, Grackle PDF Desktop is included with new plan purchases. Desktop does require installation, which some teams prefer for security, policy or workflow reasons, so you can choose the option that best fits your environment.

Looking for the Expert-level Desktop version? Grackle PDF Desktop is included with your plan.
• Advanced Table-Management
• Robust Wizards for Spaces, Links, Unicode and More
• Built-in OCR Engine
• Full-spectrum Accessibility Toolset
• Tagging, Linking & Navigation Automations
Connect with Our Team to Learn More 
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Built on proven technology.

Backed by industry-leading document processing infrastructure adapted for an effortless single-document workflow.
  • Isolated & Secure Storage

    Files are stored per-user with isolated storage paths, hosted on enterprise-grade cloud infrastructure with strict access controls and audit logging to protect your documents.

  • Enterprise Engine Foundation

    Leverages the robust AI tagging engine that powers Grackle’s established document processing tools, redesigned specifically for an intuitive, step-by-step user experience.

  • Browser-First Security Architecture

    Operates entirely within secure web protocols, ensuring your documents are processed safely without requiring local executable downloads or file permissions on your system.

Trusted by teams in

  • Government
  • Education
  • Enterprise
  • Healthcare
  • Financial Services

Make your PDFs more accessible in minutes.

No software installs, no complicated setup, and no compliance confusion. Upload your PDF and get started right away.
Start your 14-Day Free Trial
Pure browser application • No local software required • Start in seconds

Processing Larger Document Volumes?

If you need automated, high-volume document processing across your organization, Grackle Stream is built for exactly that.

Would Rather Not Do it yourself?

For high-stakes compliance needs, or when you'd simply rather hand it off, our remediation team brings white-glove service and deep expertise to get it done right.

Looking for Your Baseline?

If you need automated, high-volume document processing across your organization, Grackle Stream is built for exactly that.