How to render PDF using pdf.js viewer in PyQt?

Question

I have tried adding the pdf.js viewer files in my project and it works in browsers like Chrome, Mozilla, Safari, etc, but it\'s not loading some pages in node-webkit and PyQ

Answer 1

From PyQt5 v5.13 you can load PDF files with the chromium API. According to the documentation https://doc.qt.io/qt-5/qtwebengine-features.html#pdf-file-viewing this option is by default enabled.

This minimal example is adapted from Simple Browser

import sys
from pathlib import Path

from PyQt5 import QAxContainer
from PyQt5.QtCore import Qt
from PyQt5.QtWidgets import QWidget, QVBoxLayout, QPushButton, QLineEdit, QApplication


class Main(QWidget):
    def __init__(self, parent=None):
        super(Main, self).__init__(parent)
        self.main_layout = QVBoxLayout(self)

        self.qlineedit = QLineEdit()
        self.qlineedit.returnPressed.connect(self.go_action)
        self.main_layout.addWidget(self.qlineedit)
        self.read_btn = QPushButton('Test')
        self.read_btn.clicked.connect(self.go_action)
        self.main_layout.addWidget(self.read_btn)

        self.WebBrowser = QAxContainer.QAxWidget(self)
        self.WebBrowser.setFocusPolicy(Qt.StrongFocus)
        self.WebBrowser.setControl("{8856F961-340A-11D0-A96B-00C04FD705A2}")
        self.main_layout.addWidget(self.WebBrowser)

    def go_action(self):
        # convert system path to web path
        f = Path(self.qlineedit.text()).as_uri()
        # load object 
        self.WebBrowser.dynamicCall('Navigate(const QString&)', f)


if __name__ == "__main__":
    a = QApplication(sys.argv)
    w = Main()
    w.show()
    sys.exit(a.exec_())

This example