# pptx-tools
[](https://github.com/iory/pptx-tools/actions)
[](LICENSE)
[](https://pypi.org/project/pptx-tools/)
## Install
Suport only python3.
```
pip install pptx-tools
```
## Quick Example
Create Google Application Credentials files and set
```
export GOOGLE_APPLICATION_CREDENTIALS=/PATH/TO/JSON
```
After that,
```
slide-add-voice <PATH-TO-YOUR-AWESOME-SLIDE>
```
You can change the synthesized voice by specifying the `--voice-name` as shown below.
```
slide-add-voice pptx_tools/data/hello.pptx --voice-name en-US-Wavenet-C
```
In addition, you can listen to the voice samples available for use with Google Text-to-Speech at the following URL: https://cloud.google.com/text-to-speech/docs/voices
### Slide Video Formatter Command
The `slide-video-formatter` command is a utility program allowing users to format videos within PowerPoint presentations by specifying the `vcodec` and `crf`.
```
slide-video-formatter <YOUR-AWESOME-SLIDE> --out /tmp/tmp.pptx --vcodec libx264 --crf 28
```
## Q & A
Q: What happens to the slide transition time when both a video file and a synthesized voice are present on the slide?
A: The transition time for the slide will be based on whichever is longer between the duration of the synthesized voice and the duration of the video.
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