In this Python article, i want to show you Export File as PDF with Pyside2, for this purpose we are using QPrinter class. the QPrinter class is a paint device that paints on a printer. this device represents a series of pages of printed output, and is used in almost exactly the same way as other paint devices such as QWidget and QPixmap . A set of additional functions are provided to manage device-specific features, such as orientation and resolution, and to step through the pages in a document as it is generated. when printing directly to a printer on Windows or macOS, QPrinter uses the built-in printer drivers. on X11, QPrinter uses the Common Unix Printing System (CUPS) to send PDF output to the printer. As an alternative, the printProgram() function can be used to specify the command or utility to use instead of the system default.
Note: you can watch the complete video for this article at the end.
Also you can check my previous articles on Pyside2 GUI Development.
1: Getting Started With Pyside2 | Qt For Python
2: Pyside2 GUI Creating First Window
3: Pyside2 GUI Creating Window Icon
4: Pyside2 GUI How To Create Icon Modes
5: Pyside2 GUI How To Create Tooltip
6: Pyside2 GUI QPushButton With Signal And Slot
7: Pyside2 GUI Making Center The Window
8: Python GUI How To Create AboutBox
9: Python GUI How to Create Digital Clock in Pyside2
10: How To Create StatusBar In Pyside2
11: Pyside2 Creating QProgressBar
12: Pyside2 Layout Managment with QHBoxLayout
13: Pyside2 GridLayout Example
16: Pyside2 Creating FontComboBox
17: Pyside2 Creating QCompleter
18: Pyside2 GUI Creating Slider
19: Pyside2 Create MenuBar & MenuItems
21: Pyside2 Creating Print Preview Dialog
22: How to Create Print Dialog in Pyside2
So now this is the complete source code for this article
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from PySide2.QtWidgets import QApplication, QMainWindow, QAction, QTextEdit, QFileDialog import sys from PySide2.QtGui import QIcon, QFont from PySide2.QtPrintSupport import QPrinter, QPrintPreviewDialog, QPrintDialog from PySide2.QtCore import QFileInfo class Window(QMainWindow): def __init__(self): super().__init__() self.setWindowTitle("Simple Notepad Application") self.setGeometry(300,200,700,500) self.textEdit = QTextEdit(self) self.textEdit.setFont(QFont('Sanserif', 13)) self.setCentralWidget(self.textEdit) self.setIcon() self.create_menu() self.show() def setIcon(self): appIcon = QIcon("icon.png") self.setWindowIcon(appIcon) def create_menu(self): mainMenu = self.menuBar() fileMenu = mainMenu.addMenu('File') viewMenu = mainMenu.addMenu('View') editMenu = mainMenu.addMenu('Edit') fontMenu = mainMenu.addMenu('Font') helpMenu = mainMenu.addMenu('Help') # open action openAction = QAction(QIcon('open.png'), "Open", self) openAction.setShortcut('Ctrl+O') # save action saveAction = QAction(QIcon('save.png'), "Save", self) saveAction.setShortcut('Ctrl+S') # exit action exitAction = QAction(QIcon('exit.png'), "Exit", self) exitAction.setShortcut('Ctrl+X') #print previeq action previewAction = QAction(QIcon('printpreview.png'), "Print Preview", self) # print action printAction = QAction(QIcon('print.png'), "Print", self) printAction.setShortcut("Ctrl+P") #export as pdf newly added for this article pdfAction = QAction(QIcon('pdf.png'), "Export PDF", self) #signals for the actions exitAction.triggered.connect(self.exit_app) previewAction.triggered.connect(self.print_preview_dialog) printAction.triggered.connect(self.print_dialog) pdfAction.triggered.connect(self.pdf_export) fileMenu.addAction(openAction) fileMenu.addAction(saveAction) fileMenu.addAction(exitAction) viewMenu.addAction(previewAction) viewMenu.addAction(printAction) viewMenu.addAction(pdfAction) def exit_app(self): self.close() def print_preview_dialog(self): printer = QPrinter(QPrinter.HighResolution) previewDialog = QPrintPreviewDialog(printer, self) previewDialog.paintRequested.connect(self.print_preview) previewDialog.exec_() def print_preview(self, printer): self.textEdit.print_(printer) def print_dialog(self): printer = QPrinter(QPrinter.HighResolution) dialog = QPrintDialog(printer, self) if dialog.exec_() == QPrintDialog.Accepted: self.textEdit.print_(printer) def pdf_export(self): fn, _ = QFileDialog.getSaveFileName(self, "Export PDF", None, "PDF files (.pdf); All files") if fn != '': if QFileInfo(fn).suffix() == "": fn += '.pdf' printer = QPrinter(QPrinter.HighResolution) printer.setOutputFormat(QPrinter.PdfFormat) printer.setOutputFileName(fn) self.textEdit.document().print_(printer) myapp = QApplication(sys.argv) window = Window() myapp.exec_() sys.exit() |
In the above code we are using some codes from the previous article.
1: Pyside2 Create MenuBar & MenuItems
3: Pyside2 Creating Print Preview Dialog
4: How to Create Print Dialog in Pyside2
you can check the above articles to know more about this code, but we are going to just focus on exporting a file as pdf in pyside2.
These are the imports that we need in this article.
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from PySide2.QtWidgets import QApplication, QMainWindow, QAction, QTextEdit, QFileDialog import sys from PySide2.QtGui import QIcon, QFont from PySide2.QtPrintSupport import QPrinter, QPrintPreviewDialog, QPrintDialog from PySide2.QtCore import QFileInfo |
OK now in here we are going to set our window title, also we need to set the geometry of the window, like x and y position of the window, also width and height of the window .
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self.setWindowTitle("Simple Notepad Application") self.setGeometry(300,200,700,500) |
Also we need to create our QTextEdit in our main class, first we have created the object of QTextEdit, after that we have set the font for our QTextEdit. also you need to set the textedit as central widget for the window.
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self.textEdit = QTextEdit(self) self.textEdit.setFont(QFont('Sanserif', 13)) self.setCentralWidget(self.textEdit) |
In here we have created menuBar object and we have added some items to the menuBar.
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mainMenu = self.menuBar() fileMenu = mainMenu.addMenu('File') viewMenu = mainMenu.addMenu('View') editMenu = mainMenu.addMenu('Edit') fontMenu = mainMenu.addMenu('Font') helpMenu = mainMenu.addMenu('Help') |
OK now in here we have added some menu items with the icons and also shortcuts. make sure that you have some icons in your working directory. we are using QAction for this purpose, so in applications many common commands can be invoked via menus, toolbar buttons, and keyboard shortcuts. since the user expects each command to be performed in the same way, regardless of the user interface used, it is useful to represent each command as an action. Actions can be added to menus and toolbars, and will automatically keep them in sync. for example, in a word processor, if the user presses a Bold toolbar button, the Bold menu item will automatically be checked. also we have added our new menu item action that is used for exporting as pdf.
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# open action openAction = QAction(QIcon('open.png'), "Open", self) openAction.setShortcut('Ctrl+O') # save action saveAction = QAction(QIcon('save.png'), "Save", self) saveAction.setShortcut('Ctrl+S') # exit action exitAction = QAction(QIcon('exit.png'), "Exit", self) exitAction.setShortcut('Ctrl+X') #print previeq action previewAction = QAction(QIcon('printpreview.png'), "Print Preview", self) # print action printAction = QAction(QIcon('print.png'), "Print", self) printAction.setShortcut("Ctrl+P") #export as pdf newly added for this article pdfAction = QAction(QIcon('pdf.png'), "Export PDF", self) |
These are the four signals for our two menu items, and the newest one is for our exporting file as pdf that we have connected that signal to a method called pdf_export(), we will create this method later.
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#signals for the actions exitAction.triggered.connect(self.exit_app) previewAction.triggered.connect(self.print_preview_dialog) printAction.triggered.connect(self.print_dialog) pdfAction.triggered.connect(self.pdf_export) |
Now after creation of menu actions, we need to add that to the related menubar like this. basically in this example we want to add the menu items in our file menu and also the newest menu item for our export as pdf in view menu .
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fileMenu.addAction(openAction) fileMenu.addAction(saveAction) fileMenu.addAction(exitAction) viewMenu.addAction(previewAction) viewMenu.addAction(printAction) viewMenu.addAction(pdfAction) |
These are the methods that we have already covered, you can check the articles about these in the above link.
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def exit_app(self): self.close() def print_preview_dialog(self): printer = QPrinter(QPrinter.HighResolution) previewDialog = QPrintPreviewDialog(printer, self) previewDialog.paintRequested.connect(self.print_preview) previewDialog.exec_() def print_preview(self, printer): self.textEdit.print_(printer) def print_dialog(self): printer = QPrinter(QPrinter.HighResolution) dialog = QPrintDialog(printer, self) if dialog.exec_() == QPrintDialog.Accepted: self.textEdit.print_(printer) |
OK now this is the important point of this article, basically this is the creation of pdf export method.
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def pdf_export(self): fn, _ = QFileDialog.getSaveFileName(self, "Export PDF", None, "PDF files (.pdf); All files") if fn != '': if QFileInfo(fn).suffix() == "": fn += '.pdf' printer = QPrinter(QPrinter.HighResolution) printer.setOutputFormat(QPrinter.PdfFormat) printer.setOutputFileName(fn) self.textEdit.document().print_(printer) |
As you can see in the code first we have created QFileDialog, after that we are checking our filename. and after that we have created QPrinter object and also we have set the output format to PDF.
Finally, we enter the mainloop of the application. The event handling starts from this point. The mainloop receives events from the window system and dispatches them to the application widgets. also we have created the object of our window class in here.
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window = Window() myapp.exec_() sys.exit() |
If you run the complete code this will be the result
Also you can watch the complete video for this article
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