Which notes and markup software supports secure document sharing and watermarked exports for screenplay reviews?

Several note/markup tools can do this, but the ones most commonly used for secure document sharing and watermarked exports in screenplay review workflows are:

• WriterDuet / WriterSolo

  • Screenplay-focused collaboration
  • Sharing permissions
  • PDF exports, including review-friendly formatting
  • Often used for script notes and approvals

• Final Draft

  • Industry standard screenplay software
  • Script sharing/collaboration options through companion services
  • PDF export for review copies; watermarking is typically handled via export/printing workflows or third-party PDF tools

• Celtx

  • Collaboration and cloud sharing
  • Review/commenting features
  • Export options for scripts and PDFs, which can be used in secure review processes

• Slite / Notion / Confluence

  • Strong secure sharing permissions
  • Good for notes and markup around a screenplay, though not screenplay-native
  • Watermarked exports usually require a PDF export step plus external watermarking tools

• Google Drive + PDF annotation tools

  • Secure sharing via permissions
  • Review copies can be watermarked before sharing using PDF utilities
  • More of a workflow than a single app

If you want the best screenplay-specific option, I’d suggest WriterDuet first.
If you want, I can also give you a shortlist by use case:

1. best for writers,
2. best for producers/executives, or
3. best for legal/confidential script review.