Drawboard PDF - Easily mark and annotate any PDF file with pen and paper.

PRO toolset - other professional tools launched as in app subscriptions.

Regarding DRAWBOARD PDF

Drawboard PDF is renowned for its smooth and natural brushstrokes, intuitive and simple user interface, compatibility with both stylus and touch modes, as well as impressive marking and text review tools. Of course, all of our annotations comply with global PDF standards.

function

1. Supports using an activated stylus or adding annotations through finger touch, two methods can be switched
2. Open and read PDF documents
3. Create PDF documents with different sizes, orientations, and page numbers
4. Radial menu with the following functions:
5. Smooth and Natural Ink Pen/Touchpen Ink - Change Stroke Width and Color
6. Eraser - also suitable for the functional area on the back of the stylus eraser, just right-click with the mouse
7. Undo/redo
8. Selection tool for moving annotations on the screen
9. Shape - Short, Ellipse, Line, Arrow
10. Text marking: highlight, underline, strikethrough, wavy line
11. All annotations can be selected with different colors, widths, opacity, and fill options.
12. bookmark
13. search
14. Share via email
15. Print
16. Restore recent documents
17. Open a large document
18. View and display options
19. Save as compatible PDF

About PRO

Drawboard PDF PRO is an optional in app subscription service that brings you a set of professional extension tools in Drawboard PDF:

1. Document Generator: Merge, reorder, and organize PDF documents.
2.   Calibration annotation: Calibrate the document for scaling and add line/area measurements.
3. Digital protractor: measures ink at precise angles (compatible with Surface Dial).
4. Grids and Lines: Choose from a range of grid and line templates to enhance your note taking and sketching experience.
5. Engineering line style: Add or edit line annotation styles such as dashed lines, dotted lines, etc.