What's an Accessible Format
Almost anything can be made into an accessible format with the right amount of time and training, but time is a finite resource. What can you do quickly (and in small ways) to make your materials more accessible? The resources below will get you started, plus extra resources are linked in specific sections so that you can learn more.
In general, you can think of an accessibility hierarchy: HTML and other website languages are at the top because they are the easiest to make accessible; Word and Google Docs are in the middle; and the hardest to make accessible is PDFs. There are also techniques for making images, mathematics, audio, and other formats more accessible. These are just a few resources to get you started.
Visit the University of Washington's Accessibility Checklist for a more detailed list of accessibility needs. Cornell also has their own resource page on Accessible Event Planning and Accessibility in the Classroom (for faculty).
Making Written Words Accessible
These tips can help to make text more accessible to screen readers, magnifiers, people with most types of dyslexia, most types of color blindness, and to make it easier for an external brailler or refreshable braille device.
HTML is the most accessible way to present digital text, followed by Word and ePub. PDFs are the worst possible way to share written materials online.
HTML or other webpages
- Organize the page using Headings. <h1> should only be used once, for the title. <h2> through <h6> are used to make smaller or less-important headings.
- Include ALT tags for images.
- For images that are purely decorative and conveys no useful information, use the presentation role (<img src="image.jpg" role="presentation" alt="my image" />) to tell screenreaders to ignore the image completely. You can also use a null alt tag (<img src="image.jpg alt="" />), which will do the same.
- For graphs and images that convey extra or complex information, include a descriptive caption to ensure all users have access to the same information.
- If you describe or otherwise refer to a specific image in your text, make sure the ALT tag uses the same wording. (ex. "As you can see in the first diagram, more people like cats than like roaches." <img src="image.png" alt="first diagram">)
- HTML5 Guide to useful text alternatives.
- Use sans serif fonts (Verdana, Calibri, etc.) or other simple fonts.
- Research has shown that Open Dyslexic and other specialized dyslexia fonts don't actually have a positive effect on reading accuracy. However, increasing the kerning (the space between letters) does improve reading in dyslexia.
- Use descriptive links, such as "Pre-register using this website" (do NOT use CLICK HERE for every link)
- Keep your formatting as uniform as possible. Don't use rainbow letters or shift the font every paragraph.
- Don't use colors or patterns for the background of the text, as it may interfere with the browser's ability to override the page's settings.
- Use the <ul> (unordered list aka bullet points) or <ol> (numerical list) to create lists, rather than inserting your own icons and tabs, or use the built in option on your HTML editor.
- You can also run your website through the WAVE analyzer.
- For specific information on making Canvas pages more accessible, see CTI's Accessibility Guide for Canvas.
Google Docs and Microsoft Word documents
To make word processing documents accessible, follow the above tips, plus:
- Use the Headings options under the Styles button (or Ctrl+Alt+1 for Heading 1, Ctrl+Alt+2 for Heading 2, etc.)
- Don't lock the file or prevent the end user from editing it.
- If you are printing the handout, also have it available widely as an electronic file (on Canvas, or emailed to students).
- When sharing a Google Doc that is set to View only, go into Tools > Accessibility Settings and click the boxes to "Turn on Screen Reader Support" and "Turn on Screen Magnifier Support."
- For more detailed information on making Accessible Word Documents, please visit this open course on Accessibility.
- CTI has an Accessibility Guide for Documents that covers Word and Google Docs in more detail.
PDFs
If you are creating materials for a website, it is best to keep to html or plaintext pages rather than have important information in PDFs. To make PDFs accessible, follow the above tips, plus:
- Make sure the document is OCR'd
- Adobe Acrobat Pro allows for basic OCR on scanned documents. This program is available on all public access PCs in the Libraries, but you will need a free-to-create Adobe ID (it doesn't have to be connected to your Cornell account).
- If you only a low quality image scan, use ABBYY FineReader or other higher-quality OCR app. ABBYY FineReader is available in Olin B12 on the scanning computer, Catherwood Library Reading Room (the computer connected to the color e-ink monitor), and the Mann Library scanning computer. Adobe Acrobat Pro does not work well with low quality images.
- Make sure the document is tagged for images, reading order, etc.
- If you are going from a Word document or PowerPoint slideshow, you can simply used "Save as PDF" to create an OCR & tagged document. (Some versions of these programs may not correctly tag the entire document, and will require editing.)
- If you already have a PDF that needs to be tagged, you can use Adobe Acrobat Pro's Accessibility Tools to create a tagged PDF, or you can use the online PAVE site.
- Avoid creating PDFs that are scanned images only, as these are completely inaccessible to a screen reader. If you can't copy-paste from the PDF, then it's totally useless.
- For more information on creating Accessible PDFs, please see this self-guided open course module.
- You can also see CTI's Accessibility Guide for PDFs.
Large Print
- These guidelines are drawn from the American Printing House.
- Large print materials have to be at least 18 points for the text body, 20 points for subheadings, and 22 for headings.
- Instead of using italics, put the text in bold print, underscore, or enclosed in quotes.
- Use double-spacing between paragraphs, without indenting the paragraphs.
- Don't use columns.
Making Math and Science Accessible
- Accessibility-Specific Topics in STEMThis page has articles and links to topics specific to accessibility of science, technology, engineering, and math (STEM).
- Accessible Equation Editor by Sam Dooley"The Accessible Equation Editor (AEE) is web application that creates Braille text and math documents. The literary text in the document may be created by typing plain text on a computer keyboard, or uncontracted or contracted Braille on a braille keyboard. The math formulas in the document may be created using the visual math editor on a computer keyboard, or using Nemeth braille symbols on a braille keyboard."
- BlindScience's Math GemsAs a service to visitors of NFB’s Blindscience website, we are collecting the best and most useful items from the Blindmath Archives, including talking calculators, Nemeth Braille Mathematics, LaTeX, geometry, and graphing.
- Diagram Center's Accessible Math page"Below are some of resources developed by the DIAGRAM Center to address issues in accessible math."
- EquatioEquatio is a powerful equation editor that makes it easy to create digital, accessible maths. It saves time, lowers stress and eliminates frustration. It makes maths and science more accessible and engaging for every student.
- Good Practice on Inclusive Curricula in the Mathematical Sciences (PDF)"The resultant guide, ‘Good Practice on Inclusive Curricula in the Mathematical Sciences’, seeks to complement and extend, rather than replace, generic good practice advice. In order to produce a practical document, in addition to raising awareness of key questions, contributors were asked to provide a context, identify potential barriers and give clear recommendations."
- Instructional Support at PCC: Math & ScienceMultiple simple resources for creating accessible math and science materials
- MOLInsight: Web portal for the processing of molecular structures by Blind studentsThe MOLinsight web portal is a gateway to open-source software as well as software freely accessible to students that can be integrated in strategies for blind users to process chemical structures. Here you can find documentation for available programs and a guide for specific tasks.
- Perkins' School for the Blind's Accessible ScienceThe goal of this microsite is to share techniques and strategies to make science accessible to all.
- Statistical Software and Blind UsersGeneral overview of how useable statistical software is for Blind Users, created by Dr. Jonathan Godfrey.
- Accessible Math Languages and ToolsDeveloped by the Center for Distributed Learning at the University of Central Florida, this google speadsheet provides practical information on Accessible Math Languages and Accessible Math Tools.
- Using the Math Editor in Canvas"The Math Editor can be used for basic mathematical formatting for introductory math courses or for more advanced mathematical text for higher-level math courses. Both students and instructors have access to the editor."
Additionally, Canvas now has native integration of MathJax, which turns LaTeX written anywhere into screen-reader-accessible Math.
Making Images and Maps Accessible
- Describing Visual Resources ToolkitFrom the University of Michigan "The resources in this toolkit are designed to support authors, editors, publishers, and arts organizations in advancing the description of visual resources for accessibility in arts and humanities publications."
- Making Maps AccessibleFrom Penn State "Maps can present a number of accessibility, but focusing on information needed can help developers provide accessible information"
- Map Accessibility from the state of MinnesotaMaps should be usable and understandable for everyone. When creating a map, you should consider how users in different situations, such as color vision deficiency, visual impairment, cultural understanding will interact with your map.
- Art Beyond Sight: a Resource Guide to Art, Creativity, and Visual Impairment byCall Number: Fine Arts Library HV1664.A75 A78 2003Publication Date: 2002-03-01Massive resource volume on making art and images accessible, as well as museum and archive displays.
- Arizona State University Image Accessibility Creator (AI)"Designed to effortlessly generate alt text and detailed descriptions, as well as extract text from slides and images that are not accessible, our tool simplifies the creation of inclusive content. Just upload your image and hit 'Create Image Details.' Within seconds, you'll see the generated content appear on the right side of the screen. This tool currently utilizes the GPT-4o model provided by OpenAI. We are using their API platform, which ensures the data sent is not retained or stored to improve their training or models."
See also our Tactile Learning Materials page.
Making Video Accessible
- Audio Description TipsheetThe Audio Description Tip Sheet is intended as a quick reference for describers. View the DCMP Description Key for a comprehensive and accessible reference for audio description.
- DCMP Captioning KeyThese guidelines are a key for vendors who perform captioning for the Described and Captioned Media Program.
- DCMP Description KeyThese guidelines are a key for vendors who perform description for the Described and Captioned Media Program.
- Examples and more info about Audio Descriptions"Audio descriptions provide audible information that isn’t described or spoken in the main soundtrack of a video. This includes important actions, characters, scene changes, and on-screen text. Users who are blind or low vision benefit most from audio descriptions. Audio description also benefits users who have difficulty understanding visual information."
- Guidelines and Best Practices for Video Captioning"You can create your own closed captioning in the form of an SRT file (such as through YouTube, Canvas Studio, or another method) or you can work directly with a paid third-party service to create an SRT file for you."
- How to Add Captions to a Video?"Having captions is crucial to a great video. Whether you’re making tutorial videos or even your very own green screen marketing videos, it’s time to make captioning a key part of your video workflow."
- How to Generate Automatic Subtitles/Captions in a YouTube VideoYou have already uploaded videos into YouTube. Now, you want to add captions into your videos to make your content accessible for your students. YouTube can use speech recognition technology to automatically create captions for your videos.
NOTE: Always edit the automatic captions to ensure they're accurate. YouTube also makes it easy to reorder, resize, and edit captions that can then be synced to your uploaded video. - CTI's Accessibility Guide for Recorded VideoCornell's Center for Teaching Innovation has guides on create accessible recorded video, including specific information on Kaltura, Panopto, and Zoom.
- What Is Audio Description?"Audio description is a term used to describe the descriptive narration of key visual elements in a video or multimedia product. This process allows individuals who are blind to access content that is not otherwise accessible simply by listening to the audio."
Making Audio Accessible
- Create Transcripts or Closed Captioningwhat's the best way to create transcripts or captions?
- Creating Descriptive Transcripts"To produce a descriptive transcript, it is recommended to start with an accurate caption file and then add in the appropriate level of description."
- The Importance of Accessibility in Podcasting"When we talk about accessibility, we are referencing a commitment. It is a commitment by you, the podcast creator, to provide access and opportunity for listeners of all varieties to engage in your content."
- Podcasting and Audio Storytelling"Regardless of medium, when it comes to accessibility, the goal is to make information available to the widest possible audience by presenting it in a variety of formats or through a platform that allows for easy interoperability with external devices that can transform it into other formats."
- Tools for CaptioningList of Tools for captioning by UC San Diego.
Making Social Media Accessible
- 8 Ways To Make Your Social Media Content More Accessible"Captions, alt text, color contrast and more. Here are 8 tips to make your social media content more accessible."
- Princeton's Social Media Accessibility GuidelinesIncludes Alt text, captions, CamelCase, and emojis.
- Tips for Creating Accessible Social Media Posts"Today, most popular social media platforms include some accessibility features and regularly roll out accessibility improvements. Current instructions for using accessibility features of a specific social media platform may be found on the platform website; if it can’t be found there, it is unlikely the tool developers have paid much attention to accessibility issues."
- CTI's Accessibility Guide to using Social Media in the ClassroomCornell's Center for Teaching Innovation has several online guides around accessibility, including using Social Media in the classroom.
- University of Rochester's Social Media Accessibility Guide"When posting to social media as a representative of the University, consider applying some or all of the following techniques in order to create posts that can be accessed by as many of your account’s fans and followers as possible."
Making Data Accessible
- Accessibility Data Curation PrimerAs guides to and stewards of data, curators can counsel researchers on how to build accessibility into data planning, collection, analysis, and archiving. This primer is intended as a starting point for data curators who are invested in improving the accessibility of individual files or datasets, rather than as definitive guide.
- Make Spreadsheets More Accessible and ReusableChapter 6.4 of the Research Data Workbook covers making a spreadsheet more accessible as well as reusable.
Making Presentations Accessible
- DLF's Creating Accessible and Interactive Online Presentations2020 and 2021 DLF Forum guidelines and webinar on creating more accessible presentations.
- Creating Accessible In-Person PresentationsDLF's 2022-2023 guidelines for in person presentations, including webinar, resources, and tips.
- Self-guided open course module on accessible PowerPointsDeveloped by the Washington State Board for Community and Technical Colleges, this open course is an amazing resource of straight-forward, easy-to-follow, self-guided learning around accessible design.
- CTI's Accessibility Guide for SlidesCornell's Center for Teaching Innovation has online guides for accessibility in PowerPoint and Google Slides.