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PDF Annotator vs Trilium Notes

Professional comparison and analysis to help you choose the right software solution for your needs.

PDF Annotator icon
PDF Annotator
Trilium Notes icon
Trilium Notes

PDF Annotator vs Trilium Notes: The Verdict

⚡ Summary:

PDF Annotator: PDF Annotator is a PDF viewer and editor that allows users to add annotations like text comments, highlights, shapes, and drawings to PDF files. It has basic PDF editing features to rearrange or delete pages.

Trilium Notes: Trilium Notes is an open-source hierarchical note taking application focused on building large personal knowledge bases. It has a tree-structured notes system allowing easy organization of ideas and supports features like linking between notes, embedding media, tagging, encryption, etc.

Both tools serve their respective audiences. Compare the features, pricing, and user ratings above to determine which best fits your needs.

Last updated: May 2026 · Comparison by Sugggest Editorial Team

Feature PDF Annotator Trilium Notes
Sugggest Score — —
Category Office & Productivity Office & Productivity
Pricing — Open Source

Product Overview

PDF Annotator
PDF Annotator

Description: PDF Annotator is a PDF viewer and editor that allows users to add annotations like text comments, highlights, shapes, and drawings to PDF files. It has basic PDF editing features to rearrange or delete pages.

Type: software

Trilium Notes
Trilium Notes

Description: Trilium Notes is an open-source hierarchical note taking application focused on building large personal knowledge bases. It has a tree-structured notes system allowing easy organization of ideas and supports features like linking between notes, embedding media, tagging, encryption, etc.

Type: software

Pricing: Open Source

Key Features Comparison

PDF Annotator
PDF Annotator Features
  • Add text annotations
  • Highlight text
  • Draw shapes and lines
  • Add sticky notes
  • Rearrange pages
  • Delete pages
  • Fill out PDF forms
  • Digital signatures
Trilium Notes
Trilium Notes Features
  • Hierarchical tree-structured notes
  • Rich text notes with markdown support
  • Note linking and embedding
  • Media attachments
  • Tagging and full-text search
  • Note encryption
  • Sync through Git and WebDAV

Pros & Cons Analysis

PDF Annotator
PDF Annotator
Pros
  • Intuitive interface
  • Good selection of annotation tools
  • Affordable pricing
  • Works across platforms
Cons
  • Limited editing capabilities
  • No OCR or text recognition
  • No cloud storage integration
Trilium Notes
Trilium Notes
Pros
  • Open source and self-hosted
  • Very flexible organization
  • Strong linking and embedding
  • Good for large personal knowledge bases
Cons
  • No mobile apps
  • Steep learning curve
  • Formatting options limited compared to Evernote/OneNote

Pricing Comparison

PDF Annotator
PDF Annotator
  • Not listed
Trilium Notes
Trilium Notes
  • Open Source

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Learn More About Each Product

PDF Annotator
PDF Annotator
Reviews, pricing & alternatives →
Trilium Notes
Trilium Notes
Reviews, pricing & alternatives →

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