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We are very pleased to introduce a new UI for PDFTron's document viewer:
The UI is:
This functionality is part of the new class
PTDocumentController, which is a near drop-in replacement for
The annotation toolbar has an attractive look. The toolbar scrolls horizontally, allowing it to host any number of tools. Frequently accessed undo/redo buttons are "sticky", and are always available:
Multiple toolbars are supported, and can be switched between using a toolbar chooser. A number of standard toolbars are included, including "View", "Annotate", "Shapes", and "Insert". These are completely customizable, both the name and number of toolbars, which tools they contain, and what order they are displayed in, so that it can fit your app's requirements exactly.
The UI also includes a "View Mode", which hides the annotation toolbar.
Annotation tools support presets, so that a user can quickly change between styles of the same tool. For example when the pen tool is active, switching from red to green, and then back to red, are both single-tap operations.
On iPhone, the bottom bottom bar includes one-touch access to viewing and navigation actions, which enables single-handed viewing. These actions include the annotation/bookmarks/outlines/layers lists, thumbnails, reader mode and a Safari-inspired tabs button.
Of course, this area is completely customizable for your app's purposes.
The thumbnail slider moves horizontally or vertically with the direction of scroll.
If your app contains many tools, the new UI allows the user to customize it to their preference.
This includes the ability to re-order tools in a toolbar:
As well as create a fully-custom "favorite" toolbar:
Get the answers you need: Support
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