pdf

问题 I am following their "Code Example" guide on their github. https://github.com/modesty/pdf2json#code-example In the example that says "Parse a PDF then write a .txt file (which only contains textual content of the PDF)", I copied and pasted the exact implementation into my a local JavaScript file and called it but the output text file was completely blank. 'use strict'; let fs = require('fs'); let PDFParser = require("pdf2json"); let pdfParser = new PDFParser(); pdfParser.on("pdfParser

问题 I am trying to make a valid signature in a pdf document by using a certificate from CA (Entrust) generated with a private key from Google KMS (private key never goes out from the KMS). The certificate chain is made as: [entrustCert, intermediate, rootCert] Following the part of the code I am using to make this happen: String DEST = "/tmp/test_file.pdf"; OutputStream outputFile = new FileOutputStream(DEST); CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");

问题 I am trying to make a valid signature in a pdf document by using a certificate from CA (Entrust) generated with a private key from Google KMS (private key never goes out from the KMS). The certificate chain is made as: [entrustCert, intermediate, rootCert] Following the part of the code I am using to make this happen: String DEST = "/tmp/test_file.pdf"; OutputStream outputFile = new FileOutputStream(DEST); CertificateFactory certificateFactory = CertificateFactory.getInstance("X.509");

问题 I have set password in my pdf file. I want a best way to store its password in java. I did as the following but I think, it could be easily accessed by private hackers because it is stored as string. pdfView.fromAsset("eng1.pdf").scrollHandle(new DefaultScrollHandle(this)).password("eng@789").load(); Is there any better solution than to store as string value? I went through many websites but didn't get the necessary solution. 来源： https://stackoverflow.com/questions/61619104/best-way-to

问题 I have a code which is looking for a particular string sequence throughout a bunch of pdfs. The problems is that this process is extremely slow. (Sometimes I get pdf's with over 50000 pages) Is there a way to do multi threading? Unfortunately even though I searched, I couldn't make heads or tails about the threading codes import os import shutil as sh f = 'C:/Users/akhan37/Desktop/learning profiles/unzipped/unzipped_files' import slate3k as slate idee = "123456789" os.chdir(f) for file in os

问题 Many of the math textbooks and other literature I read is in PDF format, so I frequently find myself annotating these with the Adobe Reader comments tool. I did find a helpful guide here, but sometimes I'd like the option of inserting math symbols, too. Has anyone found a reliable way to insert math symbols, TeX, or other arbitrary formatting into the annotations? So far, the best I've come up with is to enter the unicode prefixed by "0x" and hit alt+X after it. Maybe with the Adobe

问题 Many of the math textbooks and other literature I read is in PDF format, so I frequently find myself annotating these with the Adobe Reader comments tool. I did find a helpful guide here, but sometimes I'd like the option of inserting math symbols, too. Has anyone found a reliable way to insert math symbols, TeX, or other arbitrary formatting into the annotations? So far, the best I've come up with is to enter the unicode prefixed by "0x" and hit alt+X after it. Maybe with the Adobe

问题 I need to download file from folder /uploads, but I just get timeOut error when the action is called, Anyone can help me :( public function actionDownload() { $path = Yii::getAlias('@webroot') . '/uploads'; $file = $path . '/1.pdf'; if (file_exists($file)) { Yii::$app->response->sendFile($file); } } 回答1: If a download takes too much time, I see 2 possibilities You can increase the max execution time of your script. That's not the best solution as the script will still time out for too big

问题 We have an AngularJS web app that loads PDF documents from the server and displays them within the page like this: <object id="preview" type="application/pdf" data="blob:{fileUrl}"> We have a new requirement to audit whenever a user performs certain actions: views a document (done) prints a document downloads a document The PDF download and print controls are within the browser PDF viewer. We only have to support latest Google Chrome (Chrome 68 as of July 2018). Is it possible to detect when

问题 We have an AngularJS web app that loads PDF documents from the server and displays them within the page like this: <object id="preview" type="application/pdf" data="blob:{fileUrl}"> We have a new requirement to audit whenever a user performs certain actions: views a document (done) prints a document downloads a document The PDF download and print controls are within the browser PDF viewer. We only have to support latest Google Chrome (Chrome 68 as of July 2018). Is it possible to detect when