Gaaiho PDF Reader - Fast & Light Viewing | Features | Gaaiho

Gaaiho PDF Reader 5 (PC)

Annotate & Comment

Complete comment tools

  • Gaaiho Reader offers a complete set of annotation tools such as note, highlight, stamp and shapes, which allows you to enrich your documents even more. Beyond, you can also add attachments or measure lengths on the PDF.


  • Type on PDF directly with adjustable font, font styles, size, color, underline, alignment options available.

Advanced comment features

  • Open the comment panel which categorizes comments by types and displays their numbers. You may also import, export migrate comments or create comment summary.