Working with projects
Saving a project
To save your project work, use the Save button in the header bar or press Ctrl+S. When you save a project for the first time, a dialog window appears, asking you where to save the project file and how to name it.
If you want to save your project to a different file, use App menu ▸ Save as or press Ctrl+Shift+S. This can be used to create different versions of your project.
Undoing and reverting changes
To undo a change, simply click on the Undo button in the header bar or press Ctrl+Z. In addition to undoing individual changes, you can also decide to revert all the changes you have made since the last time you saved your project. To do so, use App menu ▸ Revert to saved version.
To redo changes that were undone, click on the Redo button in the header bar or press Ctrl+Shift+Z.
Editing the project settings
The project settings define mainly how the video appears while you edit the project. The video resolution and aspect ratio affect the appearance of the previewer. If the resolution and aspect ratio do not match those of your footage, the video may look squished or letterboxed. These settings can be changed at any time by using App menu ▸ Project Settings.
When you create a new project and import the first video file, its properties are transposed to the project settings (unless you already changed them yourself). An infobar appears when this happens. At this point you have the chance to adjust the project settings applied automatically by clicking the Project Settings button in the infobar.
Pixel aspect ratio vs display aspect ratio
Digital images are composed of a grid of, which may or may not be square. In some cases, you may need to set the (PAR) for the image to display correctly. On the other hand, (DAR) is the mathematical ratio of width:height for the whole image.
In Pitivi, pixel aspect ratio and display aspect ratio are related to each other through video resolution (width and height). Once your resolution is set, setting the DAR will influence the PAR and vice versa. You can use either DAR or PAR, whichever you are most comfortable with.
You can use the ratios already provided in the combo boxes, or input a custom aspect ratio in the text entry below (using a syntax such as "4:3" or "1.3333", although the decimal version is less precise).