pdf

问题 I have the content of a pdf in base64 and I need to show it in a container in a flutter application. I'm trying to do it with the image, pdf and convert packages from dart,but I get an error with the image class and I don't know how to show the image. List<int> pdfDataBytes = base64.decode(fileContent); Image img = decodeImage(pdfDataBytes); PdfImage image = PdfImage( pdf, image: img.data.buffer.asUint8List(), width: img.width, height: img.height); This is the message of the error in the

问题 I have the content of a pdf in base64 and I need to show it in a container in a flutter application. I'm trying to do it with the image, pdf and convert packages from dart,but I get an error with the image class and I don't know how to show the image. List<int> pdfDataBytes = base64.decode(fileContent); Image img = decodeImage(pdfDataBytes); PdfImage image = PdfImage( pdf, image: img.data.buffer.asUint8List(), width: img.width, height: img.height); This is the message of the error in the

问题 My application has a list of pdf inside listview. The pdf is viewed inside the application using a webview that open a Google Docs sheet. It works fine for the first opened PDF, but when going back and opening another PDF I got the error "whoops! There was a problem previewing this document" . Is there some kind of limitation on opening PDF using google sheet. If so, how can I get full rights to open any PDF I want. can someone help please. Here is my code. //---you need this to prevent the

问题 Using CoreGraphics on iOS is very easy to use, but it is possible to get the output of CoreGraphics and put it into OpenGL Textures? The final goal is to use CGContextDrawPDFPage to render very performant pdf's and write it into a specific texture id with OpenGL.glBindTexture(GL_TEXTURE_2D, TextureNativeId); It does look like CoreGraphics is not able to render directly into a specific "native texture id". 回答1: Yes, you can, by rendering your Core Graphics content to a bitmap context and

问题 I am generating pdf invoice using fpdf. Some invoices containing many items, and details need to go into the second page. However, I need the total, and other details to be displayed on the first page. Right now, if I can add new page like this: $pdf->AddPage(); But, this puts everything into the second page, whatever after this statement. There seems to be no way to specify the page for either write or cell methods. Rendering, and calculations are bit complex, thus don't want to store into a

问题 I am a beginner with nodejs. And I am writing a program, which convert text data from json file to pdf file: This is my input file (input.json) { "Info": { "Company": "ABC", "Team": "JsonNode" }, "Number of members": 4, "Time to finish": "1 day" } And I want to convert it to a .pdf (report.pdf) file with following style. Info 1.1 Company ABC 1.2 Team JsonNode Number of members 4 Time to finish 1 day My problems are: 1: How to change style from input.json file to style of report.pdf. 2: How to

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 days ago . Improve this question I'm trying to build a little converter website. pdf to docx, images to pdf, csv to excel etc... I really want to use node as my static files host server. But as I know node doesn't have that cool modules to handle such convertations. I think of using another server

问题 Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 2 days ago . Improve this question I'm trying to build a little converter website. pdf to docx, images to pdf, csv to excel etc... I really want to use node as my static files host server. But as I know node doesn't have that cool modules to handle such convertations. I think of using another server

问题 I am attempting to publish some Octave code as a PDF, however, I keep on getting the same error message: 'pdflatex' is not recognized as an internal or external command, operable program or batch file. I have also downloaded MikTex now but it still does work when I use the command options.format='pdf'; options.showCode = false; publish('document1.m',options) Why is this not working? 来源： https://stackoverflow.com/questions/61815611/pdflatex-to-convert-octave-code-into-pdf-documents

问题 I have a weird issue that I've been stuck with for a couple of days now. I'm trying to generate a pdf in a Laravel app using chrome headless with this command google-chrome --headless --disable-gpu --print-to-pdf=outputfile.pdf http://localurl/pdf-html The command basically opens chrome in headless mode, navigates to the given url and prints it as pdf saving the file in the specified location. This command is working perfectly when run in my system's shell (I'm using Ubuntu 18.04). Now, my