pyqt预览并调用系统默认打印机打印pdf文件
时间: 2024-09-09 15:07:07 浏览: 105
在PyQt中,为了预览PDF文件并使用系统的默认打印机进行打印,可以使用`PyQtWebEngine`结合`qprintdialog`来实现这个功能。首先确保已经安装了`PyQt5`和`PyQt5-WebEngine`。
以下是一个简单的示例:
```python
from PyQt5.QtCore import Qt
from PyQt5.QtGui import QDesktopServices
from PyQt5.QtPrintSupport import QPrinter, QPrintDialog
from PyQt5.QtWidgets import QApplication, QMainWindow, QWebEngineView, QPushButton
class PDFPreviewWindow(QMainWindow):
def __init__(self, pdf_path):
super().__init__()
self.setWindowTitle("PDF Preview & Print")
self.setGeometry(100, 100, 800, 600)
self.web_view = QWebEngineView(self)
self.web_view.setHtml('<iframe src="' + pdf_path + '" width="100%" height="100%"></iframe>')
self.web_view.show()
print_button = QPushButton("Print", self)
print_button.clicked.connect(self.print_document)
print_button.setGeometry(10, 570, 100, 30)
def print_document(self):
# 创建打印机对象
printer = QPrinter()
dialog = QPrintDialog(printer, self)
if dialog.exec() == QPrintDialog.Accepted:
# 设置打印机选项,例如纸张方向、质量等
printer.setOutputFormat(QPrinter.PdfFormat)
printer.setOutputFileName("/path/to/save/file.pdf") # 输出保存路径
# 打印文档
self.web_view.print_(printer)
app = QApplication([])
window = PDFPreviewWindow('/path/to/your/pdf/file.pdf') # 替换为你的PDF文件路径
window.show()
app.exec_()
```
在这个示例中,当用户点击"Print"按钮时,会打开打印对话框让用户选择打印机并设置其他选项。然后,程序会启动WebEngineView的打印功能,并保存生成的PDF到指定路径。
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