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本篇內(nèi)容主要講解“基于PyQt5如何完成PDF拆分功能”,感興趣的朋友不妨來(lái)看看。本文介紹的方法操作簡(jiǎn)單快捷,實(shí)用性強(qiáng)。下面就讓小編來(lái)帶大家學(xué)習(xí)“基于PyQt5如何完成PDF拆分功能”吧!
PyQt是Qt框架的Python語(yǔ)言實(shí)現(xiàn),是最強(qiáng)大的GUI庫(kù)之一。PyQt提供了一個(gè)設(shè)計(jì)良好的窗口控件集合,具有更方便的操作性。學(xué)過(guò)VB的同學(xué)會(huì)知道,相比與VB的使用,在界面設(shè)計(jì)上元素更豐富。
先看界面:
import os from PyQt5 import QtCore, QtGui, QtWidgets import base64 from return_png import img as retu # 引入img變量,賦別名為pdf_cf class Ui_PdfC(object): def setupUi(self, PdfC): tmp = open('return.png', 'wb') # 創(chuàng)建臨時(shí)的文件 tmp.write(base64.b64decode(retu)) # 把這個(gè)one圖片解碼出來(lái),寫入文件中去。 tmp.close() PdfC.setObjectName("PdfC") PdfC.setWindowModality(QtCore.Qt.NonModal) PdfC.resize(1400, 814) PdfC.setMinimumSize(QtCore.QSize(1400, 814)) PdfC.setMaximumSize(QtCore.QSize(1400, 814)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Window, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Window, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Window, brush) PdfC.setPalette(palette) self.Reback = QtWidgets.QToolButton(PdfC) self.Reback.setGeometry(QtCore.QRect(10, 10, 51, 41)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.ToolTipBase, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.ToolTipBase, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.ToolTipBase, brush) self.Reback.setPalette(palette) icon = QtGui.QIcon() icon.addPixmap(QtGui.QPixmap("return.png"), QtGui.QIcon.Normal, QtGui.QIcon.Off) self.Reback.setIcon(icon) self.Reback.setIconSize(QtCore.QSize(100, 100)) self.Reback.setAutoRaise(True) self.Reback.setObjectName("Reback") self.label = QtWidgets.QLabel(PdfC) self.label.setGeometry(QtCore.QRect(88, 8, 171, 41)) font = QtGui.QFont() font.setFamily("微軟雅黑") font.setPointSize(16) font.setBold(True) font.setWeight(75) self.label.setFont(font) self.label.setObjectName("label") self.frame = QtWidgets.QFrame(PdfC) self.frame.setGeometry(QtCore.QRect(20, 60, 1351, 161)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(245, 255, 250)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Window, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(245, 255, 250)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Window, brush) brush = QtGui.QBrush(QtGui.QColor(245, 255, 250)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(245, 255, 250)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Window, brush) self.frame.setPalette(palette) self.frame.setAutoFillBackground(True) self.frame.setFrameShape(QtWidgets.QFrame.Box) self.frame.setFrameShadow(QtWidgets.QFrame.Plain) self.frame.setLineWidth(1) self.frame.setMidLineWidth(0) self.frame.setObjectName("frame") self.scwd = QtWidgets.QPushButton(self.frame) self.scwd.setGeometry(QtCore.QRect(570, 30, 191, 61)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(0, 217, 159)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.ButtonText, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255, 128)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.PlaceholderText, brush) brush = QtGui.QBrush(QtGui.QColor(0, 217, 159)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.ButtonText, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255, 128)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.PlaceholderText, brush) brush = QtGui.QBrush(QtGui.QColor(0, 217, 159)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(120, 120, 120)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(120, 120, 120)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.ButtonText, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0, 128)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.PlaceholderText, brush) self.scwd.setPalette(palette) font = QtGui.QFont() font.setFamily("微軟雅黑") font.setPointSize(16) font.setBold(True) font.setWeight(75) self.scwd.setFont(font) self.scwd.setAutoFillBackground(True) self.scwd.setAutoDefault(False) self.scwd.setDefault(False) self.scwd.setFlat(True) self.scwd.setObjectName("scwd") self.label_2 = QtWidgets.QLabel(self.frame) self.label_2.setGeometry(QtCore.QRect(620, 100, 131, 21)) font = QtGui.QFont() font.setFamily("微軟雅黑") self.label_2.setFont(font) self.label_2.setObjectName("label_2") self.frame_2 = QtWidgets.QFrame(PdfC) self.frame_2.setGeometry(QtCore.QRect(1050, 280, 321, 301)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(245, 255, 250)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Window, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(245, 255, 250)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Window, brush) brush = QtGui.QBrush(QtGui.QColor(245, 255, 250)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Base, brush) brush = QtGui.QBrush(QtGui.QColor(245, 255, 250)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Window, brush) self.frame_2.setPalette(palette) self.frame_2.setAutoFillBackground(True) self.frame_2.setFrameShape(QtWidgets.QFrame.NoFrame) self.frame_2.setFrameShadow(QtWidgets.QFrame.Plain) self.frame_2.setLineWidth(1) self.frame_2.setMidLineWidth(0) self.frame_2.setObjectName("frame_2") self.label_3 = QtWidgets.QLabel(self.frame_2) self.label_3.setGeometry(QtCore.QRect(20, 20, 191, 31)) font = QtGui.QFont() font.setFamily("微軟雅黑") font.setPointSize(14) font.setBold(False) font.setWeight(50) self.label_3.setFont(font) self.label_3.setObjectName("label_3") self.xzwd = QtWidgets.QPushButton(self.frame_2) self.xzwd.setGeometry(QtCore.QRect(30, 190, 271, 61)) palette = QtGui.QPalette() brush = QtGui.QBrush(QtGui.QColor(0, 217, 159)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.ButtonText, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255, 128)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Active, QtGui.QPalette.PlaceholderText, brush) brush = QtGui.QBrush(QtGui.QColor(0, 217, 159)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.ButtonText, brush) brush = QtGui.QBrush(QtGui.QColor(255, 255, 255, 128)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Inactive, QtGui.QPalette.PlaceholderText, brush) brush = QtGui.QBrush(QtGui.QColor(0, 217, 159)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Button, brush) brush = QtGui.QBrush(QtGui.QColor(120, 120, 120)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.Text, brush) brush = QtGui.QBrush(QtGui.QColor(120, 120, 120)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.ButtonText, brush) brush = QtGui.QBrush(QtGui.QColor(0, 0, 0, 128)) brush.setStyle(QtCore.Qt.SolidPattern) palette.setBrush(QtGui.QPalette.Disabled, QtGui.QPalette.PlaceholderText, brush) self.xzwd.setPalette(palette) font = QtGui.QFont() font.setFamily("微軟雅黑") font.setPointSize(14) font.setBold(True) font.setWeight(75) self.xzwd.setFont(font) self.xzwd.setAutoFillBackground(True) self.xzwd.setAutoDefault(False) self.xzwd.setDefault(False) self.xzwd.setFlat(True) self.xzwd.setObjectName("xzwd") self.label_5 = QtWidgets.QLabel(self.frame_2) self.label_5.setGeometry(QtCore.QRect(30, 60, 131, 21)) font = QtGui.QFont() font.setFamily("微軟雅黑") self.label_5.setFont(font) self.label_5.setObjectName("label_5") self.textEdit = QtWidgets.QTextEdit(self.frame_2) self.textEdit.setGeometry(QtCore.QRect(50, 110, 61, 51)) font = QtGui.QFont() font.setFamily("微軟雅黑") font.setPointSize(12) font.setBold(True) font.setWeight(75) self.textEdit.setFont(font) self.textEdit.setObjectName("textEdit") self.label_6 = QtWidgets.QLabel(self.frame_2) self.label_6.setGeometry(QtCore.QRect(140, 130, 41, 21)) font = QtGui.QFont() font.setFamily("微軟雅黑") self.label_6.setFont(font) self.label_6.setObjectName("label_6") self.textEdit_2 = QtWidgets.QTextEdit(self.frame_2) self.textEdit_2.setGeometry(QtCore.QRect(200, 110, 61, 51)) font = QtGui.QFont() font.setFamily("微軟雅黑") font.setPointSize(12) font.setBold(True) font.setWeight(75) self.textEdit_2.setFont(font) self.textEdit_2.setObjectName("textEdit_2") self.label_7 = QtWidgets.QLabel(PdfC) self.label_7.setGeometry(QtCore.QRect(480, 250, 71, 21)) font = QtGui.QFont() font.setFamily("微軟雅黑") self.label_7.setFont(font) self.label_7.setObjectName("label_7") self.label_4 = QtWidgets.QLabel(PdfC) self.label_4.setGeometry(QtCore.QRect(270, 290, 461, 511)) self.label_4.setFrameShape(QtWidgets.QFrame.Box) self.label_4.setFrameShadow(QtWidgets.QFrame.Plain) self.label_4.setLineWidth(1) self.label_4.setText("") self.label_4.setObjectName("label_4") self.retranslateUi(PdfC) QtCore.QMetaObject.connectSlotsByName(PdfC) os.remove("return.png") def retranslateUi(self, PdfC): _translate = QtCore.QCoreApplication.translate PdfC.setWindowTitle(_translate("PdfC", "PDF拆分")) self.Reback.setText(_translate("PdfC", "...")) self.label.setText(_translate("PdfC", "PDF拆分")) self.scwd.setText(_translate("PdfC", "+ 上傳文檔")) self.label_2.setText(_translate("PdfC", "上傳文檔至此")) self.label_3.setText(_translate("PdfC", "操作")) self.xzwd.setText(_translate("PdfC", "開(kāi)始拆分")) self.label_5.setText(_translate("PdfC", "輸入頁(yè)數(shù)(請(qǐng)勿輸0)")) self.label_6.setText(_translate("PdfC", "到")) self.label_7.setText(_translate("PdfC", "PDF預(yù)覽"))
class pdcwindow(QtWidgets.QWidget,Ui_PdfC): def __init__(self): super(pdcwindow, self).__init__() self.setupUi(self) def re_back(self): self.close() def sctp(self): fileName, fileType = QtWidgets.QFileDialog.getOpenFileName(self, "選取文件", os.getcwd(),"自定義(*.pdf;*);;All Files(*)") self.f = str(fileName) self.p, self.s =self.f.split(".") try: if self.s == "pdf": # 打開(kāi)文件 doc = fitz.open(self.f) # 讀取一頁(yè) 0代表第1頁(yè) page_one = doc.loadPage(0) # 將第一頁(yè)轉(zhuǎn)換為Pixmap page_pixmap = page_one.getPixmap() # 將Pixmap轉(zhuǎn)換為QImage image_format = QImage.Format_RGBA8888 if page_pixmap.alpha else QImage.Format_RGB888 page_image = QImage(page_pixmap.samples, page_pixmap.width, page_pixmap.height, page_pixmap.stride,image_format) #width = page_image.width() #height = page_image.height() # QImage 轉(zhuǎn)為QPixmap pix = QPixmap.fromImage(page_image) # 設(shè)置圖片大小自適應(yīng)標(biāo)簽 self.label_4.setScaledContents(True) # 給標(biāo)簽設(shè)置圖像 self.label_4.setPixmap(pix) else: msg_box = QMessageBox(QMessageBox.Warning, "錯(cuò)誤", "文件不是 pdf 文件,請(qǐng)重新選擇!") msg_box.exec_() except Exception as e: pass def xzwj(self): pdf_file = PdfFileReader(self.f) output = PdfFileWriter() str1 = self.textEdit.toPlainText() num1 = int(str1) str2 = self.textEdit_2.toPlainText() num2 = int(str2) if num1 == num2: num1 = num1 - 1 for i in range(num1, num2): output.addPage(pdf_file.getPage(i)) # 寫出pdf pdf_out = "{}_pdf拆分.{}".format(self.p,self.s) with open(pdf_out, 'ab') as out_pdf: output.write(out_pdf) root = tkinter.Tk() root.withdraw() tkinter.messagebox.showinfo("提示", "成功下載到源文件所在文件夾")
說(shuō)明如下:
(1) def sctp(self): 其中的sctp為按鈕的objectName屬性名字;def xzwj(self):其中的xzwj為按鈕的objectName屬性名字;
(2) 可通過(guò)點(diǎn)擊按鈕實(shí)現(xiàn)本地文件上傳;
fileName, fileType = QtWidgets. QFileDialog.getOpenFileName(self, "選取文件", os.getcwd(), "自定義(*.jpg;*.png;*.jpeg;*);;All Files(*)")
(3) 增加了防錯(cuò)功能,當(dāng)上傳的文檔格式不是pdf時(shí),將不執(zhí)行程序,同時(shí)提示錯(cuò)誤;
(4) 將pdf第一頁(yè)轉(zhuǎn)為圖片,并用label組件顯示;
(5) 在def xzwj(self):程序中可實(shí)現(xiàn)按頁(yè)數(shù)拆分pdf;
if __name__ =="__main__": import sys app = QtWidgets.QApplication(sys.argv) win = mywindow() pc = pdcwindow() win.show() win.pdf_cf.clicked.connect(win.pic_main) win.pdf_cf.clicked.connect(pc.show) pc.Reback.clicked.connect(pc.re_back) pc.Reback.clicked.connect(win.show) pc.scwd.clicked.connect(pc.sctp) pc.xzwd.clicked.connect(pc.xzwj) sys.exit(app.exec_())
到此,相信大家對(duì)“基于PyQt5如何完成PDF拆分功能”有了更深的了解,不妨來(lái)實(shí)際操作一番吧!這里是億速云網(wǎng)站,更多相關(guān)內(nèi)容可以進(jìn)入相關(guān)頻道進(jìn)行查詢,關(guān)注我們,繼續(xù)學(xué)習(xí)!
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