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javascript - Drawing/text over PDF on transparent layers, organized in a database

问题描述:

I would like to add new layers to existing 1-page PDF documents, where i can add text/rectangles/draw lines.

Each PDF document could have 3-4 layers, and I need to be able to show/hide the seperate layers. For example showing the original PDF + layer 2 and 4.

If its possible, which would be the best way to save a reference to the objects on the new layers? I want each element on the layer to be stored as a reference in a MySQL database.

Can this be achieved in JavaScript?

Any help in the right direction is highly appreciated.

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