Reader interaction.

Comments, read receipts, page marks for proofing, and annotations.

• CommentsProEnable readers to leave feedback on your documents with per-comment visibility controls and owner moderation.
• Read receiptsBasicAsk readers to explicitly confirm they received your document.
• Page marks and proofingProLet reviewers rate each page with pick, reject, or maybe verdicts.
• AnnotationsProLet readers highlight regions and attach notes to specific areas of your document.