Suparnar Taina

Suparnar Taina

1600659329

Rendering PDF files in the browser with JavaScript

Rendering PDF files in the browser with JS

There are 2 ways of rendering PDFs for your website or application. The first way is the server-side rendering, which is probably the most well known in the web development world. There are a lot of articles how to implement it and which library to use, that’s why we skip it and focus on a new way, the client-side rendering which starts being popular with the advancement of HTML5.

Why Should You Prefer the Client-side Rendering

There is a couple of reasons. Firstly, you can save server’s CPU resources, so they can be used for something more valuable. Secondly, you don’t need to worry where to store thousands of generated PDFs as well as cleaning up the old ones.

Libraries

Thanks to the open source community, there are a lot of good libraries to solve this problem. In this post I will highlight two the most promising ones:  jsPDF and  PDFMake.

#pdf #pdfmake #jspdf #javascript #html

What is GEEK

Buddha Community

Rendering PDF files in the browser with JavaScript
Cayla  Erdman

Cayla Erdman

1594369800

Introduction to Structured Query Language SQL pdf

SQL stands for Structured Query Language. SQL is a scripting language expected to store, control, and inquiry information put away in social databases. The main manifestation of SQL showed up in 1974, when a gathering in IBM built up the principal model of a social database. The primary business social database was discharged by Relational Software later turning out to be Oracle.

Models for SQL exist. In any case, the SQL that can be utilized on every last one of the major RDBMS today is in various flavors. This is because of two reasons:

1. The SQL order standard is genuinely intricate, and it isn’t handy to actualize the whole standard.

2. Every database seller needs an approach to separate its item from others.

Right now, contrasts are noted where fitting.

#programming books #beginning sql pdf #commands sql #download free sql full book pdf #introduction to sql pdf #introduction to sql ppt #introduction to sql #practical sql pdf #sql commands pdf with examples free download #sql commands #sql free bool download #sql guide #sql language #sql pdf #sql ppt #sql programming language #sql tutorial for beginners #sql tutorial pdf #sql #structured query language pdf #structured query language ppt #structured query language

Suparnar Taina

Suparnar Taina

1600659329

Rendering PDF files in the browser with JavaScript

Rendering PDF files in the browser with JS

There are 2 ways of rendering PDFs for your website or application. The first way is the server-side rendering, which is probably the most well known in the web development world. There are a lot of articles how to implement it and which library to use, that’s why we skip it and focus on a new way, the client-side rendering which starts being popular with the advancement of HTML5.

Why Should You Prefer the Client-side Rendering

There is a couple of reasons. Firstly, you can save server’s CPU resources, so they can be used for something more valuable. Secondly, you don’t need to worry where to store thousands of generated PDFs as well as cleaning up the old ones.

Libraries

Thanks to the open source community, there are a lot of good libraries to solve this problem. In this post I will highlight two the most promising ones:  jsPDF and  PDFMake.

#pdf #pdfmake #jspdf #javascript #html

make duen

1622110483

How to Convert Multiple EML Files to PDF Adobe with Attachments

In this informative write-up, we try to assist all those users who need to know how to batch convert .eml to PDF documents. Here we will discuss a manual approach & automated solution to convert multiple EML files of any supported mail clients – Windows Live Mail, Windows Mail, eM Client, Outlook Express, DreamMail, etc into PDF Adobe documents. So keep reading this write-up to understand entire facts regarding to EML conversion to PDF.

EML is the single email file extension of multiple mail clients – Outlook Express, Thunderbird, Lotus Notes, DreamMail, eM Client, Windows Live Mail, Windows Mail, etc. Users can also get .eml files from the supported mail clients by drag & drop method. On the other side, PDF is the document file format of Adobe Reader that is available free of cost from freeware websites. PDF provides lots of simple & advanced functionalities so users are going with it. PDF is UNIVERSAL document file format and approved in all over the world for personal, professional & governmental work. It also provides protection facility to lock documents with user & owner password from unneeded access. Therefore, PDF demands are increasing day by day. Now the question arises that how to convert EML files to PDF Adobe documents. EML & PDF both are not a similar file extension so there is no direct migration solution available to do this task. But a manual trick can save few EML files to PDF. If you have proper time & few EML mails then you can follow the given steps of manual method -

How to Batch Convert .eml to PDF Manually

  • First of all, install Windows Live Mail in your system & also launch it on your desktop screen.
  • Create a new folder in Windows Live Mail with any name.
  • Select all EML files, drag them & drop in the newly created folder.
  • After that check all saved .eml files in Windows Live Mail.
  • Now select mail which you need to save emails to PDF.
  • Go to File Menu and Click on Print button.
  • Choose Microsoft Print to PDF option & Click on Print button.
  • Choose location where you want to save output files as PDF.

Note – Repeat this process to save multiple Windows Live Mail messages to PDF one by one. It is not suitable for large EML files migration to PDF. Sometimes, it fails due to technical issues. It cannot save emails to PDF with attachments properly. It is also a lengthy process so take lots of time of users.
How to Convert Multiple EML Files to PDF with Automated Solution

If you need urgent EML to PDF migration and also have large EML files database for conversion. Don’t want to go with the above explained manual solution then you can go with PCVARE EML to PDF Converter that has beneficial functions to provide safe, quick & complete EML conversion to PDF result. It is simple to use so anyone can handle it. The program can convert all EML files to PDF at once so you can get batch migration for .eml files to .pdf. It works smoothly and also convert batch EML files to PDF with attachments, formatting, hyperlinks, images, metadata, unread status, etc.

For your assistance, it provides free demo edition to check out its migration processing. So you can convert 25 EML files to PDF, after downloading & launching it on desktop screen. Therefore, you can clear your all doubts and solve how to convert multiple EML files to PDF problem. Therefore, you can try both of the explained solution at free of cost. So solve all problems freely.

#how to convert multiple eml files to pdf #how to batch convert .eml to pdf #eml #files #pdf

Bongani  Ngema

Bongani Ngema

1651163100

PDFKit: A JavaScript PDF Generation Library for Node and The Browser

PDFKit

A JavaScript PDF generation library for Node and the browser.

Description

PDFKit is a PDF document generation library for Node and the browser that makes creating complex, multi-page, printable documents easy. The API embraces chainability, and includes both low level functions as well as abstractions for higher level functionality. The PDFKit API is designed to be simple, so generating complex documents is often as simple as a few function calls.

Check out some of the documentation and examples to see for yourself! You can also read the guide as a self-generated PDF with example output displayed inline. If you'd like to see how it was generated, check out the README in the docs folder.

You can also try out an interactive in-browser demo of PDFKit here.

Installation

Installation uses the npm package manager. Just type the following command after installing npm.

npm install pdfkit

Features

  • Vector graphics
    • HTML5 canvas-like API
    • Path operations
    • SVG path parser for easy path creation
    • Transformations
    • Linear and radial gradients
  • Text
    • Line wrapping
    • Text alignments
    • Bulleted lists
  • Font embedding
    • Supports TrueType (.ttf), OpenType (.otf), WOFF, WOFF2, TrueType Collections (.ttc), and Datafork TrueType (.dfont) fonts
    • Font subsetting
    • See fontkit for more details on advanced glyph layout support.
  • Image embedding
    • Supports JPEG and PNG files (including indexed PNGs, and PNGs with transparency)
  • Annotations
    • Links
    • Notes
    • Highlights
    • Underlines
    • etc.
  • AcroForms
  • Outlines
  • PDF security
    • Encryption
    • Access privileges (printing, copying, modifying, annotating, form filling, content accessibility, document assembly)
  • Accessibility support (marked content, logical structure, Tagged PDF, PDF/UA)

Coming soon!

  • Patterns fills
  • Higher level APIs for creating tables and laying out content
  • More performance optimizations
  • Even more awesomeness, perhaps written by you! Please fork this repository and send me pull requests.

Example

const PDFDocument = require('pdfkit');
const fs = require('fs');

// Create a document
const doc = new PDFDocument();

// Pipe its output somewhere, like to a file or HTTP response
// See below for browser usage
doc.pipe(fs.createWriteStream('output.pdf'));

// Embed a font, set the font size, and render some text
doc
  .font('fonts/PalatinoBold.ttf')
  .fontSize(25)
  .text('Some text with an embedded font!', 100, 100);

// Add an image, constrain it to a given size, and center it vertically and horizontally
doc.image('path/to/image.png', {
  fit: [250, 300],
  align: 'center',
  valign: 'center'
});

// Add another page
doc
  .addPage()
  .fontSize(25)
  .text('Here is some vector graphics...', 100, 100);

// Draw a triangle
doc
  .save()
  .moveTo(100, 150)
  .lineTo(100, 250)
  .lineTo(200, 250)
  .fill('#FF3300');

// Apply some transforms and render an SVG path with the 'even-odd' fill rule
doc
  .scale(0.6)
  .translate(470, -380)
  .path('M 250,75 L 323,301 131,161 369,161 177,301 z')
  .fill('red', 'even-odd')
  .restore();

// Add some text with annotations
doc
  .addPage()
  .fillColor('blue')
  .text('Here is a link!', 100, 100)
  .underline(100, 100, 160, 27, { color: '#0000FF' })
  .link(100, 100, 160, 27, 'http://google.com/');

// Finalize PDF file
doc.end();

The PDF output from this example (with a few additions) shows the power of PDFKit — producing complex documents with a very small amount of code. For more, see the demo folder and the PDFKit programming guide.

Browser Usage

There are three ways to use PDFKit in the browser:

In addition to PDFKit, you'll need somewhere to stream the output to. HTML5 has a Blob object which can be used to store binary data, and get URLs to this data in order to display PDF output inside an iframe, or upload to a server, etc. In order to get a Blob from the output of PDFKit, you can use the blob-stream module.

The following example uses Browserify or webpack to load PDFKit and blob-stream. See here and here for examples of prebuilt version usage.

// require dependencies
const PDFDocument = require('pdfkit');
const blobStream = require('blob-stream');

// create a document the same way as above
const doc = new PDFDocument();

// pipe the document to a blob
const stream = doc.pipe(blobStream());

// add your content to the document here, as usual

// get a blob when you are done
doc.end();
stream.on('finish', function() {
  // get a blob you can do whatever you like with
  const blob = stream.toBlob('application/pdf');

  // or get a blob URL for display in the browser
  const url = stream.toBlobURL('application/pdf');
  iframe.src = url;
});

You can see an interactive in-browser demo of PDFKit here.

Note that in order to Browserify a project using PDFKit, you need to install the brfs module with npm, which is used to load built-in font data into the package. It is listed as a devDependency in PDFKit's package.json, so it isn't installed by default for Node users. If you forget to install it, Browserify will print an error message.

Documentation

For complete API documentation and more examples, see the PDFKit website.

Author: foliojs
Source Code: https://github.com/foliojs/pdfkit 
License: MIT License

#node #pdf #browser #javascript 

Rahul Jangid

1622207074

What is JavaScript - Stackfindover - Blog

Who invented JavaScript, how it works, as we have given information about Programming language in our previous article ( What is PHP ), but today we will talk about what is JavaScript, why JavaScript is used The Answers to all such questions and much other information about JavaScript, you are going to get here today. Hope this information will work for you.

Who invented JavaScript?

JavaScript language was invented by Brendan Eich in 1995. JavaScript is inspired by Java Programming Language. The first name of JavaScript was Mocha which was named by Marc Andreessen, Marc Andreessen is the founder of Netscape and in the same year Mocha was renamed LiveScript, and later in December 1995, it was renamed JavaScript which is still in trend.

What is JavaScript?

JavaScript is a client-side scripting language used with HTML (Hypertext Markup Language). JavaScript is an Interpreted / Oriented language called JS in programming language JavaScript code can be run on any normal web browser. To run the code of JavaScript, we have to enable JavaScript of Web Browser. But some web browsers already have JavaScript enabled.

Today almost all websites are using it as web technology, mind is that there is maximum scope in JavaScript in the coming time, so if you want to become a programmer, then you can be very beneficial to learn JavaScript.

JavaScript Hello World Program

In JavaScript, ‘document.write‘ is used to represent a string on a browser.

<script type="text/javascript">
	document.write("Hello World!");
</script>

How to comment JavaScript code?

  • For single line comment in JavaScript we have to use // (double slashes)
  • For multiple line comments we have to use / * – – * /
<script type="text/javascript">

//single line comment

/* document.write("Hello"); */

</script>

Advantages and Disadvantages of JavaScript

#javascript #javascript code #javascript hello world #what is javascript #who invented javascript