PDF Tools vs Alt Text for Data Visualizations

PDF Tools

By Anthropic

Read, merge, split, edit, and create PDF files without opening any software.

Alt Text for Data Visualizations

By Posit

Generate accessible descriptions for charts and images in your documents.

PDF Tools

• Extracts text and tables from any PDF, including scanned documents
• Merges multiple PDFs into one file or splits a PDF into separate pages
• Creates new PDFs with custom text, layouts, and multiple pages
• Rotates pages, adds watermarks, and fills out PDF forms
• Encrypts PDFs with passwords or removes existing passwords

Alt Text for Data Visualizations

• Generates alt text for charts in R packages and Quarto documents following accessibility guidelines
• Uses your actual chart code to identify exact variables, data patterns, and visual elements
• Structures descriptions with chart type, data details, and key insights in plain language
• Ensures alt text complements rather than duplicates your existing captions
• Adapts description length and detail based on chart complexity

Reach for PDF Tools when…

• You need to pull data from a PDF invoice or report into a spreadsheet
• You're combining multiple documents into one file for a client or team
• You want to create a simple PDF report without opening design software
• You have a scanned PDF and need the text to be searchable or editable

Reach for Alt Text for Data Visualizations when…

• You're publishing data visualizations and need to make them accessible to all readers
• You have charts in documentation or articles that need screen-reader-friendly descriptions
• You want to improve existing alt text to follow current best practices
• You're auditing a Quarto document or R package site for accessibility compliance