<div dir="ltr">Thank you Patrick. This is exact solution I've came up with right after I've sent letter to Cafe. For some reason I didn't received copy of my own message and wasn't able to respond until someone respond first. Many thanks. Indeed in most cases if you can ask a question you can find a solution. </div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">вт, 9 июн. 2020 г. в 13:29, Patrick Chilton <<a href="mailto:chpatrick@gmail.com">chpatrick@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Could you call wkhtmltopdf directly with System.Process? Pandoc doesn't seem to add much value here.</div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Jun 9, 2020, 09:15 Geraldus <<a href="mailto:heraldhoi@gmail.com" rel="noreferrer" target="_blank">heraldhoi@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi dear Cafe! <div><br></div><div>I'm trying to achieve trivial task to generate PDF from HTML template using Pandoc.</div><div><br></div><div>So far I've tried `wkhtmltopdf` and `pdflatex` creators, both with no luck. </div><div><br></div><div><div>I want to put few words about `pdflatex` and `xelatex` creators first, for someone who will struggle with same task in future, it's quite hard to find code examples on the web. </div><div><br></div><div>Initially I wasn't able to render document with `pdflatex` creator. I would like to mention that `pdflatex` required a lot of LaTeX stuff to be installed, especially font packages. Also I've spent several hours to make rendering happen because I haven't specified template in `WriterOptions`. `pdflatex` do not capable to handle Cyrillic Unicode characters, and finally I figured out I have to use `xelatex` creator. Also I've found and used default template:</div><div><br></div><div>> pandoc <- readHtml def (toStrict $ renderHtml html)</div><div>> tpl' <- getDefaultTemplate "latex"</div><div>> makePDF "xelatex" [] writeLaTeX (def {writerTemplate = Just tpl'}) pandoc</div><div><br></div><div>But in this case I got white space instead of Cyrillic chars in resulting PDF and a bunch of warnings about missing chars in default font in console. I assume the font itself is specified in template. I've looked into default template and it's huge. I guess I can prepare more simple template for my own needs but it will take a lot of time to get familiar with LaTeX document syntax. </div></div><div><br></div><div>I've tried `wkhtmltopdf`, which seems to be lightweight and easy solution. It seemed to work well except encoding issues: resulting PDF contains Cyrillic which rendered incorrectly. I've tried to pass `["encoding utf-8"]` as arguments in `makePDF` call, but this results in runtime error:</div><div><br></div><div>> --margin-bottom specified in incorrect location<br></div><div><br></div><div>Googling around this issue led me to glue that when I pass encoding argument to `wkhtmltopdf` it breaks expected arguments order in command which Pandoc generates. This is likely could be easily fixed, but Pandoc have a lot of opened issues on Github and also it requires some digging into `wkhtmltopdf` command line arguments syntax. I've looked into Pandoc sources and it seems possible to provide simple patch, but I need a guidance. According to `wkhtmltopdf` it distinguish global args, page args, cover args, table of contents args. `encoding` argument is page level argument, but Pandoc put extra args specified in `makePDF` after default page arguments (`pdfargs` in following code sample):</div><div><br></div>> let args = mathArgs ++ concatMap toArgs<br>> [("page-size", getField "papersize" meta')<br>> ,("title", getField "title" meta')<br>> ,("margin-bottom", Just $ fromMaybe "1.2in"<br>> (getField "margin-bottom" meta'))<br>> ,("margin-top", Just $ fromMaybe "1.25in"<br>> (getField "margin-top" meta'))<br>> ,("margin-right", Just $ fromMaybe "1.25in"<br>> (getField "margin-right" meta'))<br>> ,("margin-left", Just $ fromMaybe "1.25in"<br>> (getField "margin-left" meta'))<br>> ,("footer-html", getField "footer-html" meta')<br>> ,("header-html", getField "header-html" meta')<br><div>> ] ++ pdfargs </div><div><br></div><div>Likely this breaks everything. The quickest and dirtiest workaround I see is to check each argument, and if it is a page level argument put it for each page object. Another solution may be to specify encoding for Pandoc document some other way, but I can't guess how to do that yet. </div><div><br></div><div>Maybe someone have already faced similar task and knows easier way to render HTML to PDF with Haskell. I will very grateful for any help, advice or other glues how to achieve my goal.</div><div><br></div><div>Arthur.</div></div>
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