Because PDF documents have better stability and compatibility, more and more contracts, research papers, reports, etc. are now using PDF format. To further protect the content of these important documents from unauthorized copying or use, we can add a watermark to indicate status, ownership or purpose. In response to the need to add text watermarks […]
Tag: pdf
Spring Boot implements PDF watermarking, the actual battle is coming!
Source: cnblogs.com/hushaojun/p/16285486.html Introduction PDF (Portable Document Format) is a popular file format that can be viewed and printed on multiple operating systems and applications. In some cases, we need to add watermarks to PDF files to make them more recognizable or to protect their copyright. This article will introduce how to use Spring Boot to […]
Java implements Pdf to Html-pdf2htmlEX tool
This article uses the system CentOS 7 1. Obtain the compressed package Click to download pdf2htmlEX-0.14.6.tar.gz 2. Unzip tar zxvf pdf2htmlEX-0.14.6.tar.gz 3. There will be problems with direct installation at this time. You need to compile and install libfontforge first Install all required dependent programs sudo yum install automake unzip libtool autoconf pango-devel pangoxft-devel sudo […]
Web Design and Programming Geng Zengmin pdf, Web Design and Programming Geng Zengmin
Hello everyone, the editor is here to answer the following questions for you, web design and programming project seven supplementary cases photography network page production, web design and programming Geng Zengmin electronic version, let us take a look today! Web programming design B/S architecture Browser browser Server server HTML-CSS-JavaScript-JQuery Note: (jquery is an encapsulation of […]
Use AI Chat to automatically take screenshots of e-books and save them as pdf files
If you want to download e-books, there are only two types of methods. One is to crack it from the inside. Usually some geeks crack the software into a free version, but the risk is also high. The other is to crack it from the outside, which is to take screenshots and save them, and […]
Use poi to generate word documents based on templates and convert them into PDF files
1. First make a word template (it should be noted here that the file suffix is docx and not doc). ${xxxx} is the content that will be replaced later. Regarding why the docx suffix must be, you can read this article https://www.cnblogs.com/ct-csu/p/8178932.html 2. Add the jar package files required by poi. I use maven to […]
vue3 + Element-plus + Echarts 5.2 switch does not update, exported PDF does not display solution
vue3 + Element-plus + Echarts 5.2 switch does not update, exported PDF does not display solution 1. Using el-tabs to switch causes Echarts to not display. 2. Line chart Echarts does not update problem 3. Exception thrown: Uncaught (in promise) TypeError: Cannot read properties of undefined (reading type) 4. Echarts does not display the problem […]
Java realizes the conversion of docx, doc, xlsx, xls, ppt files into pdf files
1. The following jar packages need to be imported <!–word to pdf–> <dependency> <groupId>com.aspose</groupId> <artifactId>aspose-words</artifactId> <version>15.8.0</version> </dependency> <!–xlsx or xls to pdf–> <dependency> <groupId>com.aspose</groupId> <artifactId>aspose-cells</artifactId> <version>8.5.2</version> </dependency> <!–ppt to pdf–> <dependency> <groupId>com.aspose</groupId> <artifactId>aspose-slides</artifactId> <version>19.6</version> </dependency> 2. Remove watermark files 3. Once you are ready, start the actual operation (1), first is the conversion operation of […]
java reads pdf file content
1. Introduce maven <dependency> <groupId>org.apache.pdfbox</groupId> <artifactId>pdfbox</artifactId> <version>2.0.25</version> </dependency> 2. Code tool class package com.jiayou.peis.utils; //import com.itextpdf.text.pdf.PdfReader; //import com.itextpdf.text.pdf.parser.PdfTextExtractor; //import com.itextpdf.text.pdf.parser.SimpleTextExtractionStrategy; import com.google.common.collect.Lists; import com.jiayou.peis.entity.ImageObject; import org.apache.commons.io.FileUtils; import org.apache.pdfbox.Loader; import org.apache.pdfbox.cos.COSName; import org.apache.pdfbox.pdmodel.PDDocument; import org.apache.pdfbox.pdmodel.PDResources; import org.apache.pdfbox.pdmodel.common.PDStream; import org.apache.pdfbox.pdmodel.graphics.PDXObject; import org.apache.pdfbox.pdmodel.graphics.image.PDImage; import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject; import org.apache.pdfbox.text.PDFTextStripper; import javax.imageio.ImageIO; import java.awt.image.BufferedImage; import java.io.*; import java.util.ArrayList; import java.util.List; /** […]
Java uses poi and aspose to write word template data and convert pdf to add watermarks
All source code and dependent resources of this project are linked at the top of the article. You can download and use them if necessary. 1. Requirement description Read a word template from the specified location Obtain business data and write it into the word template to generate a new word document Convert newly generated […]