Best Alternatives to A11ysaurio PDF Checker

A11ysaurio PDF Checker fills a narrow but useful niche: free, client-side scanning of PDFs already sitting in your WordPress Media Library, checked against WCAG 2.1 and PDF/UA criteria. But it's a new, small-install plugin with no review history, it only checks — it doesn't fix — and it's scoped strictly to PDFs rather than your site's pages as a whole. Depending on whether you need remediation (not just detection), print-production checks instead of accessibility checks, or full-site WCAG scanning beyond PDFs, one of these alternatives may fit better.

a11yfy

a11yfy takes the same starting point as A11ysaurio — a free, client-side PDF scan that runs entirely in your browser, checking against PDF/UA-1 using the 42 checkpoints of the Matterhorn Protocol (the same test suite behind veraPDF) — but adds a second stage that A11ysaurio doesn't offer at all: actual remediation. If the scan flags missing tags, bad reading order, untagged tables, missing alt text, or image-only pages with no OCR layer, you can pay to have a11yfy fix the file, with the repair work done on EU-based servers (adding structure tags, correcting reading order, running OCR, and rebuilding the PDF so it passes PDF/UA-1 rather than just getting flagged). This makes a11yfy the better pick if your goal is a fixed, compliant PDF rather than just a diagnostic report. The catch is pricing transparency: remediation runs on a credit system billed at roughly 1-3 credits per page depending on how broken the file is, but the actual dollar cost per credit isn't published on the WordPress.org listing — you have to go to a11yfy.com/pricing and set up an account to see current rates, which is a real friction point if you're trying to budget for remediating a large backlog before a compliance deadline.

AlphaPrepress PDF Preflight

AlphaPrepress PDF Preflight isn't an accessibility tool at all — it's a print-production preflight checker, and it's included here because it addresses a different kind of "PDF problem" that WordPress site owners handling user-uploaded files sometimes need solved. Rather than checking tags, alt text, or reading order, it validates PDFs against print-readiness rules: valid PDF structure, embedded/missing fonts, image resolution (DPI), color space (RGB vs. CMYK vs. spot), and the presence of bleed and trim boxes, generating a quality score. Its standout feature is native WooCommerce integration — if you run a print shop, promotional products store, or any site where customers upload their own artwork, it can preflight files automatically at checkout or upload, before a designer discovers a low-DPI, wrong-color-space file with no bleed. Like A11ysaurio, it runs its checks on your own server rather than shipping files to a third-party API, and it doesn't fix files — it only flags them, similar in spirit to desktop preflight tools like Callas pdfToolbox but scoped to WordPress/WooCommerce. Pricing isn't published, so as of now it's free to install from the WordPress.org repository with no visible premium tier or license key requirement.

Scanoria Accessibility Audit

Scanoria Accessibility Audit solves a broader problem than A11ysaurio: instead of checking individual PDFs, it scans your published web pages against WCAG 2.1/2.2 using axe-core, the same open-source rules engine behind Deque's own tooling. The scan runs server-side inside WordPress itself, rather than through a browser extension or an external hosted crawler, and results are stored locally in your WordPress database rather than on a third-party vendor's servers. It also includes built-in issue tracking, letting you mark violations as dismissed, in-progress, or resolved, turning a one-off scan into an ongoing backlog rather than a single report. This makes it a better fit for small-to-mid-size businesses or agencies managing multiple client sites who need a documented, repeatable audit trail ahead of ADA or EAA compliance deadlines, or for in-house teams who want to catch issues like missing alt text, poor color contrast, or unlabeled form fields before pages publish. It's not a PDF-specific tool, and like any axe-core-based scanner, it doesn't replace manual testing with screen readers or keyboard-only navigation.

Summary

If you specifically need PDFs fixed rather than just flagged, a11yfy extends A11ysaurio's client-side scanning approach with paid remediation, though you'll need to check its external pricing page before committing. If your "PDF problem" is actually a print-production one — DPI, color space, bleed — AlphaPrepress PDF Preflight addresses a completely different checklist via WooCommerce uploads. And if you want to move beyond PDFs entirely and audit your whole site's WCAG compliance with a persistent issue tracker, Scanoria Accessibility Audit is the closest fit. Which one makes sense depends on whether you're trying to detect, fix, or expand the scope of what you're checking.