基于PyQt5完成的PDF拆分功能
PyQt是Qt框架的Python語言實(shí)現(xiàn),是最強(qiáng)大的GUI庫之一。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。
本文就是基于PyQt5完成的PDF拆分功能,先看界面:
一、界面PdfC.ui可參考上文如何實(shí)現(xiàn),程序代碼如下:
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,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", "開始拆分")) self.label_5.setText(_translate("PdfC", "輸入頁數(shù)(請勿輸0)")) self.label_6.setText(_translate("PdfC", "到")) self.label_7.setText(_translate("PdfC", "PDF預(yù)覽"))
二、main.py實(shí)現(xiàn)主要功能程序如下:
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": ? ? ? ? ? ? # 打開文件 ? ? ? ? ? ? doc = fitz.open(self.f) ? ? ? ? ? ? # 讀取一頁 0代表第1頁 ? ? ? ? ? ? page_one = doc.loadPage(0) ? ? ? ? ? ? # 將第一頁轉(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)按頁數(shù)拆分pdf;
三、最后在主程序中加入以上子程序。
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_())
四、總結(jié)
本文介紹的pdf拆分功能還有一些待完善地方,例如可增加預(yù)覽功能,實(shí)現(xiàn)每頁預(yù)覽,以及如何實(shí)現(xiàn)多條件拆分。當(dāng)然我們可以在后續(xù)階段逐漸完善。
到此這篇關(guān)于基于PyQt5完成的PDF拆分功能的文章就介紹到這了,更多相關(guān)PyQt5 PDF拆分內(nèi)容請搜索腳本之家以前的文章或繼續(xù)瀏覽下面的相關(guān)文章希望大家以后多多支持腳本之家!
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