pdf

问题 When I use the following code from PyPDF2 import PdfFileMerger merge = PdfFileMerger() for newFile in nlst: merge.append(newFile) merge.write('newFile.pdf') Something happened as following: raise utils.PdfReadError("EOF marker not found") PyPDF2.utils.PdfReadError: EOF marker not found Anybody could tell me what happened? Thanks 回答1: PDF is a file format, where a pdf parser normally starts reading the file by reading some global information located at the end of the file. At the very end of

问题 I'm seeing exactly the same issue as this one: Matplotlib Plots Lose Transparency When Saving as .ps/.eps except I am trying to output to PDF rather than ps/eps. The answers to the previous question point out that eps does not support transparency and suggest either rasterising or saving as a PDF. I do get correct looking output when I save as png, so it seems as though matplotlib is dealing with the transparency correctly, but the backend is failing. Clearly PDF does support transparency, so

问题 I'm seeing exactly the same issue as this one: Matplotlib Plots Lose Transparency When Saving as .ps/.eps except I am trying to output to PDF rather than ps/eps. The answers to the previous question point out that eps does not support transparency and suggest either rasterising or saving as a PDF. I do get correct looking output when I save as png, so it seems as though matplotlib is dealing with the transparency correctly, but the backend is failing. Clearly PDF does support transparency, so

问题 everyone. Im need a VBA code to convert excel data to PDf to word doc, i wrote a macro that prints out excel as a pdf but now i would like to print it out as word from that pdf, so short version, Excel to PDF to Word. all this do to i wanna keep the format of the excel data 回答1: This will do what you want, but you need Adobe Acrobat installed. I don't know of any way to do this without having Acrobat installed. Option Explicit Option Private Module Sub ClearPaths() '--------------------------

问题 everyone. Im need a VBA code to convert excel data to PDf to word doc, i wrote a macro that prints out excel as a pdf but now i would like to print it out as word from that pdf, so short version, Excel to PDF to Word. all this do to i wanna keep the format of the excel data 回答1: This will do what you want, but you need Adobe Acrobat installed. I don't know of any way to do this without having Acrobat installed. Option Explicit Option Private Module Sub ClearPaths() '--------------------------

问题 I developing some kind of chat application with PDF viewing functions on Flutter for Android and Linux desktop platforms. So i want to embed PDF viewer in flutter application using some kind of PDF reader or WebBrowser. There is no problems with PDF's on Android - more than 100 plugins on pub.dev for PDF's and WebViews, but none of them supported Linux desktop . I have tried to add Linux desktop support for Android and IOS plugins, but look's like all of them using PlatformView and webview

问题 There is a PDF with some fields to accept values from the user(for example: a "bio data" form). My question is that how can I insert the user inputs to the Correct fields of the existing PDF and to generate the filled PDF? if i using iTextSharp, then how can i choose the co ordinates to print values? Is there any design tools to design rectangle fields to accept values? because my PDF template have lots of fields to get values from user side. tnx in adv. 回答1: There are two possibilities: Your

问题 Good day fellow programmer. I'm new to java, and I need to create an Image from a specific part of a pdf. Currently, I'm using pdfbox. Here is my code to create an image from a pdf (it's working but it creates an image of the whole pdf page): PDDocument document = PDDocument.load(new File(PDFFILE)); PDFRenderer pdfRenderer = new PDFRenderer(document); for (int page = 0; page < document.getNumberOfPages(); ++page) { BufferedImage bim = pdfRenderer.renderImageWithDPI(page, 300, ImageType.RGB);

问题 Good day fellow programmer. I'm new to java, and I need to create an Image from a specific part of a pdf. Currently, I'm using pdfbox. Here is my code to create an image from a pdf (it's working but it creates an image of the whole pdf page): PDDocument document = PDDocument.load(new File(PDFFILE)); PDFRenderer pdfRenderer = new PDFRenderer(document); for (int page = 0; page < document.getNumberOfPages(); ++page) { BufferedImage bim = pdfRenderer.renderImageWithDPI(page, 300, ImageType.RGB);

问题 Good day fellow programmer. I'm new to java, and I need to create an Image from a specific part of a pdf. Currently, I'm using pdfbox. Here is my code to create an image from a pdf (it's working but it creates an image of the whole pdf page): PDDocument document = PDDocument.load(new File(PDFFILE)); PDFRenderer pdfRenderer = new PDFRenderer(document); for (int page = 0; page < document.getNumberOfPages(); ++page) { BufferedImage bim = pdfRenderer.renderImageWithDPI(page, 300, ImageType.RGB);