# Visualizer data transfer mode

**URL:** https://discourse.paraview.org/t/visualizer-data-transfer-mode/6691
**Category:** Web Support
**Created:** [March 13, 2021, 7:08am UTC](https://discourse.paraview.org/t/visualizer-data-transfer-mode/6691 "2021-03-13T07:08:03Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![jone](https://discourse.paraview.org/user_avatar/discourse.paraview.org/jone/32/9307_2.png) [@jone](https://discourse.paraview.org/u/jone)
#### Post date: [March 13, 2021, 7:08am UTC](https://discourse.paraview.org/t/visualizer-data-transfer-mode/6691/1 "2021-03-13T07:08:03Z")

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I think the ParaviewWeb project transmits images in compression mode only by setting JPEG quality. I found Visualizer use vtkLZ4compressor, but I didn’t find it in code, perhaps because of my bad code level, I want to reference the code implementation, for the purpose of my own ParaviewWeb project, Does this approach have any advantages over JPEG compression?  
Thank you advance!  
 ![image](https://discourse.paraview.org/uploads/default/original/2X/3/30f878f5f94d00716cf9c7706cd6a7856db7f6e1.png)

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### Author: ![jourdain](https://discourse.paraview.org/user_avatar/discourse.paraview.org/jourdain/32/11_2.png) [@jourdain](https://discourse.paraview.org/u/jourdain)
#### Post date: [March 15, 2021, 3:50pm UTC](https://discourse.paraview.org/t/visualizer-data-transfer-mode/6691/2 "2021-03-15T15:50:12Z")

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This would be in distributed mode (mpi) where the image is sent to process 0 and only apply on the server side, not the web client to server. Based on what you are saying, I would guess that none of that setting apply to your setup.