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Generate QR Code in PHP with PHP QR Code Generator source code

July 6, 2020

A QR code (abbreviated from Quick Response code) is a type of matrix bar-code (or two-dimensional code) first designed for the automotive industry. More recently, the system has become popular outside of the automotive industry due to its fast readability and comparatively large storage capacity. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be made up of any kind of data (e.g., binary, alphanumeric, or Kanji symbols).

The amount of data that can be stored in the QR code depends on the character set, version and error correction level. The maximum values for version 40 with error correction capacity levels L, M, Q and H are:

Data Type	ECC=L	ECC=M	ECC=Q	ECC=H
Numeric only	7,089	5,596	3,993	3,057
Alphanumeric	4,296 characters	3,391 characters	2,420 characters	1,852 characters
Binary (8 bits)	2,953 bytes	2,331 bytes	1,663 bytes	1,273 bytes
Kanji/Kana	1,817 characters	1,435 characters	1,024 characters	784 characters

VeryUtils has a PHP QR Code Generator Script which can be purchased on this web page,

https://veryutils.com/php-qr-code-generator

You can also click "Live Demo" button on this web page to evaluate it online,

PHP QR Code Generator demo page also supports GET parameters:
data=qrcode string
level= L or M or Q or H
size=from 1 to 10

You can use cURL to call PHP QR Code Generator to get the QR Code,

https://veryutils.com/demo/php-qrcode/?data=https://veryutils.com&level=H&size=10

PHP QR Code Generator is a standalone PHP script, after you buy it, you will get full source code, you can integrate it into your project to generate QR Code easily.

Scripts

How to generate QR code in PHP automatically using VeryUtils PHP QR Code Generator?

July 5, 2020July 6, 2020

QR Code is a 2-dimensional barcode specification. QR Codes can be seen on cola cans, business cards, in sushi bars, and in museums. The QR Code has since grown in popularity because of its ability to include a lot of data in a single image and the proliferation of smartphones with scanning apps.

QR codes are a popular type of two-dimensional barcode. They are also known as hardlinks or physical world hyperlinks. QR Codes store up to 4,296 alphanumeric characters of arbitrary text. This text can be anything, for example URL, contact information, a telephone number, even a poem! QR codes can be read by an optical device with the appropriate software. Such devices range from dedicated QR code readers to mobile phones.

In this article I'll show you how you can easily generate QR Codes from within your PHP application and share some ideas on how and when to use them, We'll be using VeryUtils PHP QR Code Generator, a library written in PHP for generating QR Codes and which doesn't require any dependencies beyond the standard GD2 graphics extension for creating images.

The first, please open following web page in your web browser,

https://veryutils.com/php-qr-code-generator

You can click "Live Demo" button to test it online,

In the demo page of PHP QR Code Generator Web application, you may enter a text into "Data" field, such as email address, web URL, phone number, address, payment hyperlink, etc. information, select "ECC" and "Size" options, click "Generate" button, then you will get a QR Code easily.

VeryUtils PHP QR Code Generator Web application supports GET parameters also,

data=QR Code string
level= L or M or Q or H
size=from 1 to 10

for example, you may call it like below,

https://veryutils.com/demo/php-qrcode/?data=https://veryutils.com&level=H&size=10

The "level" parameter is a level of error correction for the generated barcode, passed as a single letter string. This specifies how much of the data's codewords (8-bits per codeword) can be restored for a distorted or damaged QR Code image using the Reed-Solomon error correction algorithm. The higher the correction level, the less the data capacity of the barcode can be for a given dimension. Below is a table mapping the levels to their restore percentages and the string constants used when calling the PHP QR Code library.

Common Uses for QR Codes

The most common application for QR Codes is to encode website URLs, such as that to a Facebook fan page of your latest product, your company, etc. The options are endless. I myself use it on my business card and encode the URL to my LinkedIn profile.

Video Software

How to convert Video to mp3 (Convert MP4 to MP3) on windows?

July 4, 2020

MP4 files are used to store and watch videos, while MP3 files are used to store and listen audio. The MP4 and MP3 file formats have the same lineage, they all come from the File Compression Experts Group (MPEG) format. In addition, in terms of attributes, the MP4 file format and the MP3 file format are very similar. The only major difference between the two is that the MP4 format is used for video and the MP3 format is used for audio.

The conversion between the two formats is very simple. The MP4 file format contains both video and audio, while the MP3 file format contains only audio. In this case, simply strip the video content to convert MP4 files to MP3 files. However, the process of converting MP3 files to MP4 files is not smooth, because it is usually impossible to add videos to audio files and convert them to MP4 files. Many different applications and programs are designed for the Windows operating system, which can convert MP4 files to MP3 files.

VeryUtils Video Editor software is a Windows software, which can convert lots of Video formats to lots of Audio formats, such as,

mp4 to 3gp (3GPP Multimedia File)
mp4 to 3g2 (3GPP2 Multimedia File)
mp4 to aac (Advanced Audio Coding File)
mp4 to ac3 (AC3 Audio File)
mp4 to avi (Windows video file)
mp4 to flac (Free Lossless Audio Codec)
mp4 to flv (Flash video)
mp4 to gif (Compuserve graphics interchange)
mp4 to ipad (MPEG-4 (H264) Video File)
mp4 to iphone (MPEG-4 (H264) Video File)
mp4 to ipod (MPEG-4 Video File)
mp4 to mov (Apple QuickTime Movie)
mp4 to mp3 (Compressed audio file)
mp4 to mpg (Moving Picture Experts Group File)
mp4 to ogg (Ogg Vorbis Compressed Audio File)
mp4 to wav (Windows audio file)
mp4 to webm (Multimedia Container Format)
mp4 to wmv (Windows Media Video)

The following steps will let you know how to convert a MP4 or MKV or other video formats to MP3 Audio file using VeryUtils Video Editor software.

1. Please download and install VeryUtils Video Editor software from this web page,

https://veryutils.com/video-editor-software

2. After you install it, you may run it and open a Video file in the software,

3. In the Export window, you may choose "MP3" format as output format, you can also set some options for the MP3 format, then you can click "Export File" button to export to a MP3 file.

4. After a few seconds, you will get the final MP3 file,

5. You can open the MP3 file in Windows Media Player to listen it, you can also import this MP3 file to your mobile phone or other devices and listen it on anywhere.

If you have any question for VeryUtils Video Editor software, please feel free to let us know, we are glad to assist you asap.

Video Software

How to convert video to animated GIF with VeryUtils Video Editor software [High Quality]?

July 3, 2020July 4, 2020

VeryUtils Video Editor is a Best Video to GIF image Converter. It supports Converting all popular video file formats to GIF images. You can highly customize your GIF images with elements, animations, text, overlays.

GIF images can convey a lot of information, so they are increasingly popular among users. Therefore, GIF is a useful solution when you cannot accommodate heavy video in your project, but want to provide more accurate visual information.

Converting video clips to GIF is the easiest way to make GIF. If you still feel that the GIF file is too large, then cutting the GIF is also a good choice. VeryUtils Video Editor is a best gif video production tools that can be used to make animated GIF from video files.

VeryUtils Video Editor highlight features:
* Video to GIF : convert local and Cloud videos to GIFs.
* Shooting GIF : take a new Video and convert to GIF.
* YouTube Videos to GIF : convert YouTube video to GIF and you can share with friends.
* Photos to GIF : you can select from 15 Photo effect templates and easily, quickly export to GIF.
* Live Photo to GIF : turn Live Photos into GIFs.
* Burst Photos to GIF.
* Animated Text : creates GIF from custom text with provided animation templates.
* Album : share the GIF image with friends via iMessages, Facebook, Twitter, Instagram, Email, Dropbox.
* Save GIF as Video.
* Edit: reverse, rotate, change the quality of GIF image.
* A very simple tool that can be easily used by anyone.
* It allows you to convert long video to gif.
* The interface has just steps, extract, and create a video to gifs.
* The file types supported are AVI, GIF, mp4, MPEG, WAV and more.
* You can change the height and width of the individual frame.
* You can select the playback speed.

Please use following steps to convert a Video file to animated GIF file,

1. Please download and install VeryUtils Video Editor from this web page,

https://veryutils.com/video-editor-software

2. After you install the software, you may open a Video file in VeryUtils Video Editor, then you can export it to an animated GIF file easily,

3. You can adjust the speed for animated GIF by "Frames/sec" option easily,

4. You can click "Export File" button to extract this Video file to GIF file properly.

5. You can play the Animated GIF file in Chrome or Firefox or Internet Explorer.

You can download and enjoy Video to GIF software from our website directly, if you encounter any problem with it, please feel free to let us know,

https://veryutils.com/video-editor-software

PDF Software

How to add a Transparent Signature Stamp to PDF file using VeryUtils PDFStamp Command Line software?

July 2, 2020

I am using your PDFStamp Command Line and PDFStamp GUI versions. Your PDFStamp Command Line does able to convert from white background color to transparent background color perfectly. However, PDFStamp GUI software doesn't support this feature.

Is the "convert white background color to transparent background color" possible with the GUI version of VeryPDF PDF Stamp software?

Can the stamp be protected or made so that it is not possible to copy and paste it into another application or document? I want to use it to add a signature image to drawings and do not want people to be able to copy that signature.

Regards
Customer
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I have found the encryption options. I would like encryption 16, deny copy of contents. I do no want to enter password on file open. Is that possible?

Thanks for the help thus far.
Customer
----------------------------------

Thanks for your message, please don't set "-openpwd" option in the command line, the encrypted PDF file will not prompt the open password, for example,

pdfstamp.exe -pdf D:\example.pdf -o D:\out.pdf -AI D:\downloads\logo.jpg -P9 -r45 -transparentcolor#FFFFFF -opacity50 -encrypt -ownerpwd=123456 -keylen=2 -encryption=16

VeryUtils
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This is my line of code:

pdfstamp.exe -pdf "gba example.pdf" -o "0gba.pdf" -AI gbalogo.jpg -W18 -H17.5 -P6 -MLR117 -MTB-39 -encrypt -ownerpwd=123456 -keylen=2 -encryption=16

I still get prompted for password on file open.

Please help.
Customer
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Sorry for this problem, we have fixed this problem today, please download the new version from this URL to try again,

https://veryutils.com/pdf-stamper-command-line

Your command line works fine in the new version of pdfstamp.exe application.

VeryUtils
----------------------------------
Perfect. Thank you.

One last question.
Which file/s do I deploy on my server? Is it only the pdfstamp.exe?

Customer
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Thanks for your message, you can deploy following files to your server,

pdfstamp.exe
imgconv.exe
cimage.dll
cximagecrt.dll
pdflayerdll.dll
pdfsdk.dll
pdftoolsdk.dll

You can call pdfstamp.exe from your PHP, ASP, C#, VB.NET, etc. program languages to stamp PDF files easily.

VeryUtils