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To request a tagged PDF from DocRaptor, set prince_options.profile to PDF/UA-1. That is a generation setting—not proof that the finished file is accessible or meets every WCAG criterion or legal requirement. Start with meaningful, accessible HTML, generate the PDF, then inspect and test the output.
Request tagged PDF output from DocRaptor
DocRaptor’s documentation gives the key setting: “To create a tagged document with DocRaptor, set the prince_options[profile] parameter to PDF/UA-1.” In a JSON request, profile belongs inside prince_options:
{
"type": "pdf",
"document_content": "<html lang="en"><head><title>Accessible report</title></head><body><h1>Accessible report</h1><p>Report text.</p></body></html>",
"prince_options": {
"profile": "PDF/UA-1"
}
}Before relying on the option, check the DocRaptor API reference for the pipeline applicable to your account: it lists PDF/UA-1 support on pipeline 7 and later. DocRaptor accepts HTML for PDF generation. JavaScript is disabled by default; enable the javascript option if your source depends on it. See DocRaptor’s HTML and JavaScript tutorial.
Prepare HTML that carries the document’s meaning
PDF tagging can preserve structure expressed in the source, but it cannot reliably infer every relationship from visual appearance. Author the HTML as a document first, then style it.
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#1 Best Overall
Elebase USB to USB C Adapter for iPhone 18 Pro Max,USBC Car Charger Adapter
- Read Before You Buy — No Video Output: These adapters support charging and USB 2.0 data transfer, but cannot transmit video signals. Except for standard USB webcams (which use USB data only), they are not compatible with HDMI/DisplayPort cables, video-capable USB-C hubs, or docking stations with video output.
- Convert USB-A Ports to USB-C: Designed to connect USB-C earphones, cables, flash drives, card readers, and other USB-C accessories to standard USB-A ports. Plug-and-play with no drivers or software required.
- Aluminum Alloy Housing: Built with a sturdy aluminum alloy shell that aids in heat dissipation and protects against daily wear and scratches. Designed to maintain a stable and secure connection.
- Compact & Travel-Friendly: The ultra-compact design allows the adapter to stay plugged into your device without blocking adjacent ports or adding bulk, reducing wear and tear on your original USB ports.
- 12-Month Warranty: Backed by a 12-month manufacturer warranty for peace of mind. Designed to meet strict quality control standards for reliable everyday performance.
Use semantic elements, headings, and reading order
- Use headings in a logical hierarchy and semantic elements for paragraphs, lists, quotations, and tables. DocRaptor says Prince maps common elements such as headings and block quotes to PDF tags.
- Write the source in the intended reading order. CSS can move content visually without changing the logical order represented by tags.
- For tables, identify headers and captions clearly. Review the generated tags; complex structures or a table of contents may require custom tagging.
Set language, title, and image alternatives
- Set the main language on the root element, for example
<html lang="en">, and mark passages in another language where appropriate. - Give the HTML document a meaningful
<title>. DocRaptor notes that assistive devices use the document title rather than the filename. Author and subject metadata can also be useful. - Provide meaningful alternatives for informative images. Mark decorative imagery so assistive technology can ignore it; W3C PDF techniques describe alternatives and treating decorative images as artifacts.
Check visual presentation and contrast
- Do not communicate meaning through color alone. Pair color cues with text, and make links distinguishable by more than color.
- For WCAG 2.2 Success Criterion 1.4.3, the contrast threshold is 4.5:1 for ordinary text and 3:1 for large-scale text, subject to exceptions including inactive interface components, pure decoration, and logos. Consult W3C’s explanation of Contrast (Minimum).
Inspect and test the generated PDF
Successful conversion and a PDF/UA-1 profile do not establish that the resulting document works for its readers. Review the actual PDF, including content whose visual layout may conceal structural errors.
- Inspect the tag tree. Confirm that headings, paragraphs, lists, table headers and captions, image alternatives, abbreviations, quotations, footnotes, and bibliography entries have meaningful structure. DocRaptor warns that some material, including a table of contents, may need custom tagging.
- Review bookmarks. DocRaptor creates bookmarks from headings by default. Check that they reflect the document outline and help readers navigate.
- Check reading order against the page. Compare the tag order with the intended meaning, especially in multi-column or otherwise complex layouts. W3C explains that reading order is primarily determined by the order of tagged elements, and complex layouts may not convert as intended.
- Test with assistive technology. Read the document with a screen reader or read-aloud tool. For interactive content, check keyboard tab order as well as the visual arrangement.
- Run a validator, then review manually. DocRaptor names CommonLook PDF Validator and PAC as checking tools, axesPDF as a checking and remediation tool, and pdfGoHTML as a tag-inspection tool. DocRaptor notes that pdfGoHTML does not itself test against standards. These tools have different scopes; no single automated check proves usability.
- Repair and recheck. Correct source HTML or apply suitable custom tagging, regenerate the PDF, and repeat the checks on the delivered file.
Use custom tagging where automatic mapping is insufficient
DocRaptor documents Prince’s -prince-pdf-tag-type CSS property for custom tagging, including examples involving table-of-contents tags, decorative content, and ARIA roles. Use none only for content that is genuinely decorative. Do not hide meaningful repeated content such as page numbers.
Rank #2
Anker USB-C Hub, 5-in-1 USB Hub for Laptops, 4K HDMI Multiport Adapter
- 5-in-1 USB-C Hub: Experience comprehensive connectivity featuring a Power Delivery input, two USB-A 2.0 ports, a USB-A 3.0 port, and an HDMI port. (Note: The USB-C power delivery input port is only for connecting an external wall charger to power your laptop and cannot power peripheral devices.)
- 90W Pass-Through Charging: Achieve optimal charging with 90W pass-through power to your laptop, supported by a total input of 100W, with the hub reserving 10W for operational efficiency. (Note: Wall charger not included.)
- Quick Data Transfers: Accelerate your productivity with rapid data transfers using a high-speed 5Gbps USB 3.0 port and two 480Mbps USB 2.0 ports.
- 4K HDMI Display: Enhance your visual experience with a hub capable of delivering 4K resolution at 30Hz in both mirror and extend modes. Please note that this hub is compatible with MacBook (macOS 12 and newer), Windows 10 and 11, ChromeOS, and laptops equipped with DP Alt Mode and Power Delivery. Note: This device is not compatible with Linux.
- What You Get: Anker USB-C Hub (5-in-1, 4K HDMI), welcome guide, 18-month warranty, and our friendly customer service.
What PDF/UA-1 does—and does not—establish
PDF/UA-1 requests tagged output; it does not guarantee that the source semantics, visual presentation, reading order, interactive behavior, or final user experience are correct. DocRaptor itself cautions that additional modifications may be required. Do not treat the profile setting as proof of full WCAG conformance or compliance with a particular law. W3C’s PDF techniques are informative examples of ways to meet WCAG, not mandatory implementations; see All WCAG 2.2 Techniques.
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ScreenshotNeo is a website screenshot API and MCP server, not a tagged-PDF generator or a substitute for the DocRaptor accessibility workflow above. For a webpage screenshot, one GET request returns an image or PDF. For example, this cURL request saves a WebP screenshot; replace the target URL as needed. See the ScreenshotNeo API documentation.
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Rank #3
Sale
Anker USB C Hub, 7in1 Multi-Port USB Adapter, 4K@60Hz USBC to HDMI Splitter
- Sleek 7-in-1 USB-C Hub: Features an HDMI port, two USB-A 3.0 ports, and a USB-C data port, each providing 5Gbps transfer speeds. It also includes a USB-C PD input port for charging up to 100W and dual SD and TF card slots, all in a compact design.
- Flawless 4K@60Hz Video with HDMI: Delivers exceptional clarity and smoothness with its 4K@60Hz HDMI port, making it ideal for high-definition presentations and entertainment. (Note: Only the HDMI port supports video projection; the USB-C port is for data transfer only.)
- Double Up on Efficiency: The two USB-A 3.0 ports and a USB-C port support a fast 5Gbps data rate, significantly boosting your transfer speeds and improving productivity.
- Fast and Reliable 85W Charging: Offers high-capacity, speedy charging for laptops up to 85W, so you spend less time tethered to an outlet and more time being productive.
- What You Get: Anker USB-C Hub (7-in-1), welcome guide, 18-month warranty, and our friendly customer service.
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Quick Recap
Bestseller No. 5
Best Value
Anker USB C Hub, 5-in-1 USBC to HDMI Splitter with 4K Display
- 5-in-1 Connectivity: Equipped with a 4K HDMI port, a 5 Gbps USB-C data port, two 5 Gbps USB-A ports, and a USB C 100W PD-IN port. Note: The USB C 100W PD-IN port supports only charging and does not support data transfer devices such as headphones or speakers.
- Powerful Pass-Through Charging: Supports up to 85W pass-through charging so you can power up your laptop while you use the hub. Note: Pass-through charging requires a charger (not included). Note: To achieve full power for iPad, we recommend using a 45W wall charger.
- Transfer Files in Seconds: Move files to and from your laptop at speeds of up to 5 Gbps via the USB-C and USB-A data ports. Note: The USB C 5Gbps Data port does not support video output.
- HD Display: Connect to the HDMI port to stream or mirror content to an external monitor in resolutions of up to 4K@30Hz. Note: The USB-C ports do not support video output.
- What You Get: Anker 332 USB-C Hub (5-in-1), welcome guide, our worry-free 18-month warranty, and friendly customer service.
Rank #4
Sale
UGREEN USB to USB C Adapter Combo 4-Pack, 10Gbps USB C Converter Space Gray
- Dual Converters, Infinite Potential：Includes 2× USB C male to USB A female adapters and 2× USB A male to USB C female adapters. Perfect for a wide range of uses—tablets with Bluetooth keyboards, expand USB ports on macbook, and more. Two different converters for all your daily needs
- Next-Level 10Gbps & 3A Charging: No more slow 480Mbps, this usb to usb c adapter has a transfer speed of up to 10Gbps, allowing you to do more transferring in less time. This usb adapter fits both USB A and USB C charger, supporting up to 3A fast charging
- Upgraded Exquisite Craftsmanship: With an aluminum alloy housing and metal connector, the usbc to usb adapter is extremely durable and sturdy. Rigorously tested to withstand more than 10,000 times of plugging and unplugging, ensuring long-lasting performance
- Broad Compatible: The usb c to usb adapter widely supports all USB C/ USB A devices like laptops, tablets, cellphones, car chargers, and phone chargers. Such as compatible with MacBook Pro/Air 2023/2022, Thunderbolt 4/3 Devices,Apple MagSafe Watch 9/8/7/SE/Ultra, iPad Pro 2022/2021, Samsung Galaxy S23/S20/S10, and iPhone 17/16/15 Pro. Plug and play
- Please Note: To reach 10Gbps speed, keep the cable under 3.3 ft. For USB A Male to USB C adapters, try flipping the USB C connector. USB C Male to USB A adapters support bidirectional 10Gbps transfer within 3.3 ft
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
