[wip] Show annotations

[t29mato]

https://github.com/lfoppiano/streamlit-pdf-viewer/issues/3

[t29mato]

@lfoppiano

Code still needs refactoring, but I think the functionality has been implemented to use it as demonstration.

[lfoppiano]

is it possible to add two more methods:

set_annotations(annotations=[]): set the annotations and draw them on the PDF clear_annotations(): remove the annotations from the pdf

[lfoppiano]

Another point, every time we create a new pdf_viewer(), a new pdf object is added, we might need to deal with it later.

[lfoppiano]

The annotation are working here, but I cannot see them when integrated into a streamlit app https://github.com/lfoppiano/document-qa.

You can reproduce it as follow:

1. checkout the branch add-pdf-viewer of https://github.com/lfoppiano/document-qa
2. pip uninstall streamlit-pdf-viewer
3. pip install -e path_where_your_pdfviewer_is
4. Run the document-qa app
5. slide the chunk size to -1
6. upload a PDF (in this version the pdf is not visualised at first)
7. Ask one question (nothing will happen in the left column, it's normal)
8. Ask a second question (the pdf will appear without any annotation)

[lfoppiano]

I've created a new project to test the integration of this component into a streamlit application. It should be much easier for you to test than with document-qa: https://github.com/lfoppiano/pdf-struct/

You should have received an invitation to join.

Don't forget to

pip install -e git+https://github.com/lfoppiano/streamlit-pdf-viewer

After running pip -r requirements

[lfoppiano]

OK. I managed to understand what I did wrong. I forgot to rebuild the frontend. After rebuilding the annotations are pushed to the frontend, but, something is happening and even with 24 annotations, the browser crashes...

[lfoppiano]

The issue happens when no width and height are passed. Can you calculate them from the javascript part?