# Opacity adjustment and export of multi-page pdfs not possible?

**URL:** https://scilab.discourse.group/t/opacity-adjustment-and-export-of-multi-page-pdfs-not-possible/480
**Category:** General usage
**Created:** [April 23, 2024, 10:13am UTC](https://scilab.discourse.group/t/opacity-adjustment-and-export-of-multi-page-pdfs-not-possible/480 "2024-04-23T10:13:05Z")
**Posts on this page:** 1
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### Author: ![mottelet](https://yyz2.discourse-cdn.com/free1/user_avatar/scilab.discourse.group/mottelet/32/13_2.png) [@mottelet](https://scilab.discourse.group/u/mottelet)
#### Post date: [April 23, 2024, 12:01pm UTC](https://scilab.discourse.group/t/opacity-adjustment-and-export-of-multi-page-pdfs-not-possible/480/2 "2024-04-23T12:01:44Z")

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Hello,

Scilab does not handle TrueColor model (only RGB indexed colors) in general. The only entity handling RGBA is the Matplot entity (see [Matplot - 2D plot of a matrix using colors](https://help.scilab.org/Matplot)).

Multipage pdf are not supported.

S.

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