Understand the version tree

A version is a revision of the PDF. A branch is a separate set of markups on that version.

Updated October 18, 2026

Find the controls

Versions

Viewer → Versions in the right panel, or click the version label above the drawing

Open Versions

Click Versions tab icon Versions on the right side of the viewer, highlighted below.

Right side of the drawing viewer: the orange Versions tab sits above Upload new version and the version tree.

You can also click the version label beside the drawing’s name, such as V1.1.

Versions and branches

In the tree	What it represents
V1, V2	Different revisions of the PDF.
V1.0, V1.1	Different markup branches within V1. Each branch can also have a descriptive name.
Synced layer	The latest state read from a connected Dropbox or Google Drive PDF.

For example, V1 can have separate Design review and Site review branches. When you upload V2, those branches stay on V1. Copy a branch to V2 to continue its review on the revision.

A branch separates markups. Editing the PDF's text or rearranging its pages affects the other branches on that version too.

Find the state you are viewing

Select a branch to view its markups. The Viewing icon eye marks your selection; a Lock icon lock marks a locked branch.

Connected files and uploaded files

Connected drawings show a Dropbox icon Dropbox or Google Drive icon Google Drive logo and a Sync icon Synced layer. See Synchronization for source updates and editing this layer.

A directly uploaded PDF starts with a working branch and has no synced layer.