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List:       pykde
Subject:    Re: Print preview and print PDF in PyQT5
From:       Giuseppe Corbelli <corbelligiuseppe () mesdan ! it>
Date:       2020-06-16 8:52:21
Message-ID: 8a4541cb-dfc5-f965-8132-e95f83e1a406 () mesdan ! it
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On 6/12/20 1:08 PM, Justin Giffard wrote:
> Good afternoon
> 
> I'm looking for a way to make a print preview and print a PDF. I've 
> tried various things including trying to use a webview and print from 
> there without much success.
> 
> Currently I am generating a PDF with  reportlab but ideally  what I want 
> is to be able view the document after the pdf is generated (based on 
> data  fetched from a database) and then if need be press cancel to alter 
> the parameters and then view it again then chose which printer I want 
> to  print to and then print. Thus far I haven't had much luck other than 
> making the app open the document in an external browser / external PDF 
> viewer and then printing from there or blindly printing to the default 
> printer.

Well these are 2 separate questions, and you're not mentioning what OSes 
you want this stuff to run on.

QtWebEngine supports viewing and printing PDFs [1].

PDF preview:
* poppler [2][3]
* qpdfview (or any other) that have a DBUS interface

As for the printing stuff, if you use poppler you can render to QImage 
and print that using QPrinter / QPainter.

This has some more info
https://wiki.qt.io/Handling_PDF


[1] https://doc.qt.io/qt-5/qtwebengine-features.html
[2] https://pypi.org/project/python-poppler-qt5/#description
[3] http://shallowsky.com/blog/programming/qt5-poppler-pdf.html

-- 
Giuseppe Corbelli
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