# Markdown Preview using Weave.jl

**URL:** <https://discourse.julialang.org/t/markdown-preview-using-weave-jl/50601>\
**Category:** General Usage\
**Tags:** question, package, vscode, markdown, weave\
**Created:** [November 22, 2020, 11:31pm UTC](https://discourse.julialang.org/t/markdown-preview-using-weave-jl/50601 "2020-11-22T23:31:40Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![brett\_knoss](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/brett_knoss/32/13050_2.png) [@brett\_knoss](https://discourse.julialang.org/u/brett_knoss)\
**Post date:** [November 22, 2020, 11:31pm UTC](https://discourse.julialang.org/t/markdown-preview-using-weave-jl/50601/1 "2020-11-22T23:31:40Z")

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Is there a way to use weave.jl to show a preview of a Markdown in pdf or HTML, before it’s converted? I thought I saw a picture like this using atom, in the documentation.

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**Author:** ![drbenvincent](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/drbenvincent/32/3046_2.png) [@drbenvincent](https://discourse.julialang.org/u/drbenvincent)\
**Post date:** [March 11, 2021, 3:41pm UTC](https://discourse.julialang.org/t/markdown-preview-using-weave-jl/50601/2 "2021-03-11T15:41:55Z")

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I’m interested in knowing this too. I’m not a command line ninja, but I was able to knit an example `.rmd` file into html and separately into pdf.

In VS Code it looks like there is an option to open a preview, but clicking on this doesn’t result in anything happening.

 ![Screenshot 2021-03-11 at 15.40.13](https://global.discourse-cdn.com/julialang/original/3X/6/0/609b86bf663e5384532c169214e79805336faabc.png)

I can’t see any Weave related settings in the Julia extension for VS Code

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**Author:** ![Wen-Wei\_Tseng](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/wen-wei_tseng/32/28839_2.png) [@Wen-Wei\_Tseng](https://discourse.julialang.org/u/Wen-Wei_Tseng)\
**Post date:** [March 19, 2021, 3:26am UTC](https://discourse.julialang.org/t/markdown-preview-using-weave-jl/50601/3 "2021-03-19T03:26:14Z")

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`Open preview` did work on my machine, Win10 + Julia 1.6.0-rc3 + latest Weave, VSCode and Julia extension. However, it was slow because it did full conversion every time I hit `Open preview`.

 ![image](https://global.discourse-cdn.com/julialang/original/3X/d/2/d298993bf57d625fd49c899e991e8427e8ad31d6.png)

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**Author:** ![pfitzseb](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/pfitzseb/32/45566_2.png) [@pfitzseb](https://discourse.julialang.org/u/pfitzseb)\
**Post date:** [March 19, 2021, 8:54am UTC](https://discourse.julialang.org/t/markdown-preview-using-weave-jl/50601/4 "2021-03-19T08:54:42Z")

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Right, the underlying bug got fixed fairly recently. Incremental updates for the preview are definitely possible, but not currently planned.

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**Author:** ![Ossifragus](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ossifragus/32/22768_2.png) [@Ossifragus](https://discourse.julialang.org/u/Ossifragus)\
**Post date:** [September 9, 2021, 1:29am UTC](https://discourse.julialang.org/t/markdown-preview-using-weave-jl/50601/5 "2021-09-09T01:29:34Z")

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It does not work for me either, under both Linux and Mac. When I tried this on a .jmd file, it shows an error saying “Only Julia Markdown (.jmd) files can be can be weaved.”

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**Author:** ![Ossifragus](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/ossifragus/32/22768_2.png) [@Ossifragus](https://discourse.julialang.org/u/Ossifragus)\
**Post date:** [September 9, 2021, 1:35am UTC](https://discourse.julialang.org/t/markdown-preview-using-weave-jl/50601/6 "2021-09-09T01:35:08Z")

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Do you mean it works only under Windows? It does not work for me under Mac and Linux. I am using Julia 1.6.2 with Weave 0.10.10.