Smart PDF+ Editor vs StrataRead

Smart PDF is a PDF editor specially optimized for ink annotations. Use it with an Apple Pencil for the ultimate ease in note taking. Great for professionals Quickly sign and send documents. Review, annotate and share files with your colleagues. Great for students If you spend a lot of time reading and studying documents on your iPad, then Smart PDF is an indispensable tool for getting the most out of your study time. Take notes on documents in class, or while studying at home. Keep all your files organized with the built-in file manager, with color-coded categories. We hope you enjoy Smart PDF! -- The App Makers @ Qrayon

StrataRead is a research library and PDF reader for people who read closely, collect evidence, and write with sources. Bring your papers, books, and reports into an organized workspace. Search your library, highlight important passages, capture notes, and carry your research into your writing without losing its connection to the original source. READ AND ANNOTATE • Read PDFs with native rendering, zooming, and navigation. • Highlight passages with color-coded annotations. • Attach notes to the text you are reading. • Review source information, notes, and extracts in the Inspector. FIND INFORMATION ACROSS YOUR LIBRARY • Search indexed PDF text as well as bibliographic metadata. • Narrow searches by fields such as author, title, and year. • Use quoted phrases and search-field autocomplete. • Filter notes and extracts to focus on passages matching your search. • Find and open sources through Spotlight and supported Siri and Shortcuts actions. KEEP YOUR RESEARCH ORGANIZED • Browse your sources in Library and return to recent reading. • Organize sources with projects, keywords, and reading status. • Explore projects, keywords, and source groups through the Library Map. • On iPad, sort table columns and preview notes and extracts without opening each PDF. • On iPhone, use a streamlined reading workspace with essential controls within reach. CAPTURE AND REUSE YOUR NOTES • Collect highlighted text and notes as source-linked extracts. • Clean up common PDF text issues, including broken lines and hyphenation. • Export notes and extracts as structured Markdown with citation information. • Create a separate Markdown file for each source. • Bring your research into StrataWrite, Obsidian, and other writing or knowledge-management tools. BUILD BETTER REFERENCES • Find bibliographic information using DOI, title, author, or ISBN. • Manage details for journal articles, books, edited volumes, chapters, theses, dissertations, reports, and webpages. • Copy formatted citations in supported styles, including APA and Chicago. • Identify records with missing metadata and PDFs needing attention. • Find open-access replacement PDFs when available. KEEP YOUR LIBRARY WITH YOU • Synchronize library records, notes, and PDFs through iCloud. • Keep downloaded PDFs available for offline reading. • Share PDFs and export your notes when it is time to collaborate or write. PRIVACY AND CONTROL Your PDFs and notes remain in your library, with iCloud synchronization available across your devices. Full-text search indexes stay on your device. Metadata lookups use online bibliographic services. StrataRead contains no advertising, tracking, or developer analytics. Privacy & AI settings explain how the app handles your information. Built for researchers, students, educators, and anyone who wants to turn careful reading into useful, well-organized knowledge.