Top 10 iPhone apps for PDF documents

Most popular free and paid downloads

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Editor’s note: This article contains an updating list of the most popular free and paid iPhone apps for working with PDF documents, a popular file type for sharing documents across devices and platforms.

These apps allow users to read PDF documents, convert files to PDF format, scan images and store as PDF files, and share the files with others, among other tasks. The list is based on a search of the keyword "PDF" at apps-ranking site TopAppCharts.com.