Kdenlive/Manual/Project Menu/Render
Information
- How to choose the correct output format and bit rate?
- What to do for rendering lossless, for an iPhone, or whatever? (Dropdown containing targets like lossless/HQ/player)
Rendering
Rendering is the process where the edited clips are saved into a single complete video clip. During the rendering process the video can be compressed and converted to a number of different video formats (AKA codecs).
The rendering dialog is brought up from the render button 
, from selecting in the Project Menu or by the Ctrl + Enter shortcut.
Rendering Profile Categories
Kdenlive offers many different preset rendering profiles to choose from. The rendering profiles are grouped into categories. See picture below.
File Rendering
DVD Rendering
DVD Rendering produces files that are compatible with DVD authoring software. MPEG2 files created from file rendering profiles are less likely to be compatible with DVD software.
Note that this option does not create a DVD file system. It merely creates DVD compatible MPEG2 files that can be used by DVD authoring software. If you check the check box then the DVD Wizard will open and you can use this to create a DVD file system (in .ISO format). The DVD Wizard is also available from the File Menu.
Websites
Mobile Devices
Create Custom Render Profiles
You can create your own custom render profiles by clicking the button highlighted in the screen shot below
This will open the Save Profile dialog and the section will be filled in with the render parameters of the profile that you had selected when you clicked the 
button. You can edit values in the parameters and save your own custom render profile.
The parameters in the rendering profile are ffmpeg parameters. For an explanation of there meaning check the ffmpeg man(ual) page or type ffmpeg -h in a command prompt.
See also Render Profile Parameters - How to read them
Rendering In Batch mode
If you have a lot of rendering jobs to do you can use Kdenlive to create rendering scripts which you can accumulate and then execute in a batch mode overnight. See Rendering Using Rendering Scripts.
Alternatively, once you have submitted a rendering job on a project and it is up and running in the Job Queue you can drag the render window out of the way and edit the project some more or load a new project and render that one too. The second submitted render job will go into the Job Queue. Editing the project after a render job is submitted will not change the settings on that job.
Rendering Using the Guide Zone Option
This makes use of Guides to define a region of the project that is to be rendered. See Rendering Using Rendering Scripts.
Rendering Using the Selected Zone Option
If you select the radio button from the bottom of the render dialog then Kdenlive will only render that bit of the project that has a selected zone created for it. See Creating Zones in Project Monitor