from reportlab.pdfbase.ttfonts import TTFont from reportlab.lib.styles import getSampleStyleSheet from reportlab.platypus import Paragraph, SimpleDocTemplate, Image, Table from reportlab.platypus import Spacer from reportlab.graphics.shapes import Drawing from reportlab.graphics.charts.barcharts import VerticalBarChart from reportlab.graphics.charts.legends import Legend from reportlab.lib import colors from reportlab.lib.pagesizes import A4 from reportlab.lib.units import cm def draw_text(st, text: str): return Paragraph(text, st) def draw_img(path): img = Image(path) # 读取指定路径下的图片 img.drawWidth = 6*cm # 设置图片的宽度 img.drawHeight = 5*cm # 设置图片的高度 return img def draw_table(* args): col_width = 120 style = [ ( ' FONTNAME ' , (0, 0), (-1, -1), ' song ' ), # 字体 ( ' FONTSIZE ' , (0, 0), (-1, 0), 12), # 第一行的字体大小 ( ' FONTSIZE ' , (0, 1), (-1, -1), 10), # 第二行到最后一行的字体大小 ( ' BACKGROUND ' , (0, 0), (-1, 0), ' #d5dae6 ' ), # 设置第一行背景颜色 ( ' ALIGN ' , (0, 0), (-1, -1), ' CENTER ' ), # 第一行水平居中 ( ' ALIGN ' , (0, 1), (-1, -1), ' LEFT ' ), # 第二行到最后一行左右左对齐 ( ' VALIGN ' , (0, 0), (-1, -1), ' MIDDLE ' ), # 所有表格上下居中对齐 ( ' TEXTCOLOR ' , (0, 0), (-1, -1), colors.darkslategray), # 设置表格内文字颜色 ( ' GRID ' , (0, 0), (-1, -1), 0.5, colors.grey), # 设置表格框线为grey色，线宽为0.5 ( ' SPAN ' , (0, 1), (2, 1)), # 合并第二行一二三列 table = Table(args, colWidths=col_width, style= style) return table def draw_bar(bar_data: list, ax: list, items: list): drawing = Drawing(500, 200 ) bc = VerticalBarChart() bc.x = 45 # 整个图表的x坐标 bc.y = 45 # 整个图表的y坐标 bc.height = 150 # 图表的高度 bc.width = 350 # 图表的宽度 bc.data = bar_data bc.strokeColor = colors.black # 顶部和右边轴线的颜色 bc.valueAxis.valueMin = 0 # 设置y坐标的最小值 bc.valueAxis.valueMax = 20 # 设置y坐标的最大值 bc.valueAxis.valueStep = 5 # 设置y坐标的步长 bc.categoryAxis.labels.dx = 2 bc.categoryAxis.labels.dy = -8 bc.categoryAxis.labels.angle = 20 bc.categoryAxis.labels.fontName = ' song ' bc.categoryAxis.categoryNames = ax leg = Legend() leg.fontName = ' song ' leg.alignment = ' right ' leg.boxAnchor = ' ne ' leg.x = 475 # 图例的x坐标 leg.y = 140 leg.dxTextSpace = 10 leg.columnMaximum = 3 leg.colorNamePairs = items drawing.add(leg) drawing.add(bc) return drawing from reportlab.lib.colors import Color from reportlab.lib.pagesizes import A4 from reportlab.lib.styles import getSampleStyleSheet from reportlab.lib.units import cm from reportlab.pdfbase import pdfmetrics from reportlab.pdfbase.ttfonts import TTFont from reportlab.pdfgen import canvas from reportlab.lib import colors from reportlab.platypus import BaseDocTemplate, Frame, Paragraph, NextPageTemplate, PageBreak, PageTemplate, Image def draw_text(st, text: str): return Paragraph(text, st) def draw_img(path): img = Image(path) # 读取指定路径下的图片 img.drawWidth = 5*cm # 设置图片的宽度 img.drawHeight = 4*cm # 设置图片的高度 return img def main(filename): pdfmetrics.registerFont(TTFont( ' 微软雅黑 ' , ' msyh.ttf ' )) style = getSampleStyleSheet() ts = style[ ' Heading1 ' ] ts.fontName = ' 微软雅黑 ' # 字体名 ts.fontSize = 18 # 字体大小 ts.leading = 30 # 行间距 ts.alignment = 1 # 居中 ts.bold = True hs = style[ ' Heading2 ' ] hs.fontName = ' 微软雅黑 ' # 字体名 hs.fontSize = 15 # 字体大小 hs.leading = 20 # 行间距 hs.textColor = colors.red # 字体颜色 ns = style[ ' Normal ' ] ns.fontName = ' 微软雅黑 ' ns.fontSize = 12 ns.wordWrap = ' CJK ' # 设置自动换行 ns.alignment = 0 # 左对齐 ns.firstLineIndent = 32 # 第一行开头空格 ns.leading = 20 doc = BaseDocTemplate(filename, showBoundary=0, pagesize= A4) frameT = Frame(doc.leftMargin, doc.bottomMargin, doc.width, doc.height, id= ' normal ' ) w = doc.width / 3 h = w bm = doc.height - h frame1 = Frame(doc.leftMargin, bm, w, h, id= ' col1 ' ) frame2 = Frame(doc.leftMargin + w, bm, doc.width-w, h, id= ' col2 ' ) frame3 = Frame(doc.leftMargin, doc.bottomMargin, doc.width , bm-doc.topMargin, id= ' col3 ' ) doc.addPageTemplates([ PageTemplate(id = ' TwoCol ' , frames= [frame1, frame2, frame3]), PageTemplate(id = ' OneCol ' , frames= frameT), elements = [] elements.append(draw_img( " images/title.jpg " )) elements.append(draw_text(ns, ' 。 ' )) elements.append(NextPageTemplate( ' OneCol ' )) elements.append(PageBreak()) elements.append(draw_text(ns, " Frame one column, " )) doc.build(elements) from reportlab.lib.styles import ParagraphStyle from reportlab.platypus import PageBreak from reportlab.platypus.paragraph import Paragraph from reportlab.platypus.doctemplate import PageTemplate, BaseDocTemplate from reportlab.pdfbase import pdfmetrics from reportlab.pdfbase.ttfonts import TTFont from reportlab.platypus.frames import Frame from reportlab.lib.units import cm class MyDocTemplate(BaseDocTemplate): def __init__ (self, filename, ** kw): self.allowSplitting = 0 BaseDocTemplate. __init__ (self, filename, ** kw) template = PageTemplate( ' normal ' , [Frame(2.5*cm, 2.5*cm, 15*cm, 25*cm, id= ' F1 ' )]) self.addPageTemplates(template) self.chapter = 0 self.section = 0 def afterFlowable(self, flowable): if isinstance(flowable, Paragraph): text = flowable.getPlainText() style = flowable.style.name if style == ' Title ' : self.chapter += 1 self.canv.bookmarkPage(f " chapter{self.chapter} " ) self.canv.addOutlineEntry(f " Chapter {self.chapter} " , f " chapter{self.chapter} " , level= 0) elif style == ' Heading1 ' : self.section += 1 self.canv.bookmarkPage(f " section{self.section} " ) self.canv.addOutlineEntry(f " Section {self.section} " , f " section{self.section} " , level=1 ) def main(filename): pdfmetrics.registerFont(TTFont( ' 微软雅黑 ' , ' msyh.ttf ' )) title = ParagraphStyle(name = ' Title ' , fontName = ' 微软雅黑 ' , fontSize = 22 , leading = 16 , alignment = 1 , spaceAfter = 20 ) h1 = ParagraphStyle( name = ' Heading1 ' , fontSize = 14 , leading = 16 ) story = [] story.append(Paragraph( ' 继承BaseDocTemplate ' , title)) story.append(Paragraph( ' Section 1 ' , h1)) story.append(Paragraph( ' Text in Section 1.1 ' )) story.append(PageBreak()) story.append(Paragraph( ' Section 2 ' , h1)) story.append(Paragraph( ' Text in Section 1.2 ' )) story.append(PageBreak()) story.append(Paragraph( ' Chapter 2 ' , title)) story.append(Paragraph( ' Section 1 ' , h1)) story.append(Paragraph( ' Text in Section 2.1 ' )) doc = MyDocTemplate(filename) doc.build(story) 四、使用SimpleDocTemplate SimpleDocTemplate就是继承BaseDocTemplate的一种简单实现，它覆盖了接口handle_pageBegin，重载了build接口。

它把页面分成两种：首页和后续页，对应回调两个过程onFirstPage=, onLaterPages=，只需要实现这两个回调过程即可。

适用显示页眉和页脚，其它的功能就有限了。

SimpleDocTemplate（文档模板） QrCode（二维码） drawOn（显示Flowable） from reportlab.platypus import SimpleDocTemplate, Paragraph from reportlab.platypus import PageBreak from reportlab.lib.styles import ParagraphStyle from reportlab.lib.colors import Color from reportlab.lib.pagesizes import A4 from reportlab.lib.units import mm from reportlab.pdfbase import pdfmetrics from reportlab.pdfbase.ttfonts import TTFont from reportlab.graphics.barcode import qr def myFirstPage(canvas, doc): canvas.saveState() canvas.setFillColorRGB(0, 0, 0) canvas.setFont( ' 微软雅黑 ' ,12 ) str = " （内部资料） " canvas.drawCentredString(doc.width /2, 25* mm, str) myLaterPages(canvas, doc) canvas.restoreState() # 页眉页脚 def myLaterPages(canvas, doc): canvas.saveState() canvas.setStrokeColorRGB( 0.8, 0.8, 0.8 ) canvas.line(0, 32, doc.width, 32 ) canvas.line(0, A4[ 1]-45, doc.width, A4[1]-45 ) canvas.setFillColorRGB(0, 0, 0) canvas.setFont( ' 微软雅黑 ' ,10 ) str =f " Page {doc.page} " canvas.drawCentredString(doc.width /2, 5* mm, str) canvas.setFillColorRGB( 1 , 0, 0) qr_code = qr.QrCode( ' https://www.cnblogs.com/windfic ' , width=45, height=45 ) canvas.setFillColorRGB(0, 0, 0) qr_code.drawOn(canvas, 0, A4[ 1]-45 ) canvas.restoreState() def main(filename): pdfmetrics.registerFont(TTFont( ' 微软雅黑 ' , ' msyh.ttf ' )) doc = SimpleDocTemplate(filename, pagesize=A4, leftMargin=10, rightMargin=10 ) title = ParagraphStyle(name = ' Title ' , fontName = ' 微软雅黑 ' , fontSize = 22 , leading = 16 , alignment = 1 , spaceAfter = 20 ) contents = [] contents.append(Paragraph( ' 使用SimpleDocTemplate ' , title)) contents.append(Paragraph( ' Hello ' )) contents.append(PageBreak()) contents.append(Paragraph( ' World ' )) doc.build(contents, onFirstPage =myFirstPage, onLaterPages=myLaterPages) from reportlab.platypus import SimpleDocTemplate, Image, Paragraph, PageBreak from reportlab.pdfgen import canvas from reportlab.lib.units import mm from reportlab.lib.colors import Color from reportlab.lib.pagesizes import A4 from reportlab.pdfbase import pdfmetrics from reportlab.pdfbase.ttfonts import TTFont from reportlab.lib.styles import ParagraphStyle class NumberedCanvas(canvas.Canvas): def __init__ (self, *args, ** kwargs): canvas.Canvas. __init__ (self, *args, ** kwargs) self._saved_page_states = [] def showPage(self): self._saved_page_states.append(dict(self. __dict__ )) self._startPage() def save(self): """ add page info to each page (page x of y) """ num_pages = len(self._saved_page_states) for state in self._saved_page_states: self. __dict__ .update(state) self.draw_page_number(num_pages) canvas.Canvas.showPage(self) canvas.Canvas.save(self) def draw_page_number(self, page_count): self.setFont( " Helvetica " , 9 ) self.setStrokeColor(Color(0, 0, 0, alpha =0.5 )) self.line( 10*mm, 15*mm, A4[0] - 10*mm, 15* mm) self.setFillColor(Color(0, 0, 0, alpha =0.5 )) self.drawCentredString(A4[0] /2, 10*mm, " Page %d of %d " % (self._pageNumber, page_count)) def main(filename): pdfmetrics.registerFont(TTFont( ' 微软雅黑 ' , ' msyh.ttf ' )) title = ParagraphStyle(name = ' Title ' , fontName = ' 微软雅黑 ' , fontSize = 22 , leading = 16 , alignment = 1 , spaceAfter = 20 ) image = Image( " images/title.jpg " ) image.drawWidth = 160 image.drawHeight = 160*(image.imageHeight/ image.imageWidth) elements = [ Paragraph( ' 继承Canvas ' , title), Paragraph( " Hello " ), image, PageBreak(), Paragraph( " world " ), doc = SimpleDocTemplate(filename) doc.build(elements, canvasmaker = NumberedCanvas) 直接使用Canvas类，可以精确输出，但需要自己排版，而且它的坐标原点在左下角。

其中也可以放置Flowable，需要排版的Flowable，如Table等，调用warp函数即可自动排版。

如果是内容已经排版的格式转换程序，非常推荐使用这种方式。

from reportlab.pdfgen import canvas from reportlab.platypus import Image from reportlab.lib.pagesizes import A4 from reportlab.lib.units import mm from reportlab.lib.colors import Color from reportlab.pdfbase import pdfmetrics from reportlab.pdfbase.ttfonts import TTFont def draw_page_number(c, page, count): c.setFont( " 微软雅黑 " , 9 ) c.setStrokeColor(Color(0, 0, 0, alpha =0.5 )) c.line( 10*mm, 15*mm, A4[0] - 10*mm, 15* mm) c.setFillColor(Color(0, 0, 0, alpha =0.5 )) c.drawCentredString(A4[0] /2, 10*mm, " Page %d of %d " % (page, count)) def main(filename): pdfmetrics.registerFont(TTFont( ' 微软雅黑 ' , ' msyh.ttf ' )) c = canvas.Canvas(filename) c.bookmarkPage( " title " ) c.addOutlineEntry( " my book " , " title " , level= 0) c.setFont( " 微软雅黑 " , 18 ) c.drawCentredString(A4[0] /2, A4[1] - 50, " 单独使用Canvas " ) c.setFont( " 微软雅黑 " , 12 ) c.drawString( 100, A4[1] - 76, " Hello " *100 ) img = Image( " images/title.jpg " ) img.drawWidth = 160 img.drawHeight = 160*(img.imageHeight/ img.imageWidth) img.drawOn(c, 100, A4[1] - 200 ) draw_page_number(c, 1, 2 ) c.bookmarkPage( " section1 " ) c.addOutlineEntry( " first section " , " section1 " , level=1 ) c.showPage() c.drawString( 100, A4[1] - 50, " World " ) draw_page_number(c, 2, 2 ) c.bookmarkPage( " section2 " ) c.addOutlineEntry( " second section " , " section2 " , level=1 ) c.showPage() c.showOutline() c.save() 综合以上六种方式来看，前五种基本上是同一频道，可以结合起来使用。但第六种，给我个人的感觉是更自在一点，不用去摸索，想怎么来就怎么来。

本来想推荐前五种方式融合的方案，但是当我用第六种方式实现了所有的内容，却发现代码更少，更直观。

因此，对比之下，我更推荐使用第六种方式了。

全部源码： 点此下载
https://files.cnblogs.com/files/windfic/PyPdf.7z
出处： https://www.cnblogs.com/windfic/p/17157841.html