How to convert Powerpoint to png with pointed slide not the first on restapi

User Support
1

Hi, how to convert Powerpoint to png with pointed slide not the first?
I use the rest api /cool/convert-to to convert Powerpoint to png image, and I got the screenshot of the first slide, I can’t find the params to pass the slide I want

2

hii @hingbong

Unfortunately, as of now, the convert-to API does not provide a built-in parameter to specify a particular slide. It converts only the first page/slide of the document. This limitation applies to all multi-page documents, including .pptx, .odp, and .pdf

Workaround (But will be deficult to implement :frowning: )

Convert slide by slide using LOKit scripting (if you control the Collabora server)

If you have access to the Collabora Online backend or can modify behavior, you could:

  • Open the .pptx with the LOKit API.
  • Navigate to a specific slide (e.g., with .jumpToPage()).
  • Export the current view to a PNG (but this requires a deeper integration and scripting, not the REST /convert-to).

Thanks
Darshan