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Get the full source code of application here:
https://gist.github.com/gauti123456/9d1224b22cc3ba63a240f2094e2a360a
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uh hello guys welcome to this video so
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in this video we will look at how to
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actually insert images inside your PDF
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document inside
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cop.net project and you'll be building a
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simple command line application which
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will insert images inside your PDF
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document and for this purpose we using
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the it text Shar Library which is a C
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library.net library for working with PDF
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files so what I have is that we have a
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folder called as
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images which contains these four images
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first second third fourth it contains
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jpg PNG webp images of all extensions so
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you can just see we are having these
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images we are targeting jpg PNG webp and
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we are constructing this output.pdf file
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so once I run this script if I run this
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now in Visual Studio click this it will
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open this PDF document now it will
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contain four pages and it will contain
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each image in each individual page so
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now it has con constructed this PDF
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document which contains these four
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Images this is the first image second
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image third image and the fourth image
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so all these images that was there in
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this images folder has been constructed
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into a PDF document and we will be
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looking at how to develop this project
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so for this we are using this Library it
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text sharp which is actually a famous
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c.net library for working with PDF files
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so let's get started so for building
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this application inside our Visual
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Studio first of all go to tools and you
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need to install this package go to
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nugget package manager manage nugget
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manager for solution and go to browse
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section and just search for this Library
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itext
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sharp so if you just search for this
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package the very
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first you will basically you see this
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itex PDF generation written entirely in
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C for the net
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platform and uh we will be using this so
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now
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simply make
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your for first of all we'll be importing
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all these packages it text sharp package
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it contains the text module we need to
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import this and then we need to import
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the PDF module as
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well
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PDF and lastly we need the system
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built-in module of
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Diagnostics so after this uh you will
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simply put a namespace PDF generator
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lets or PDF images to
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PDF so we'll have this uh program main
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class static void main
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function a basic CA program that we are
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writing right here and it will work in
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the command line
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so and right for first of all we do need
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to create a PDF document for this for
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creating the PDF document we'll put a
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document here which is actually a part
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of itex Chap and you'll be instantiating
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a new instance of document using this
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Constructor and here we need to actually
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pass some properties related to the PDF
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document so what page size that you want
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to construct so it has various sizes A4
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A5 so the most common size is A4 so I
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will select page size A4 then we set
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need to set the margin left and the
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margin right I will set it to 10 comma
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10 and then for the top margin and the
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bottom margin I will set it to 10 comma
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10 as well last property is
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actually a I think a Boolean parameter
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that you need to
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set okay okay that's all we need to set
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we have set the page size the margins in
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all the positions top left bottom right
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corner so after you set this document we
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need to actually provide the output file
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that we need to construct so you'll be
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constructing this result. PDF which will
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create in the same
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directory so this output file will get
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created after this application executes
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so now we need to actually create a
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object for this which is PDF writer
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object so this line we need to write
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which is PDF
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writer this is actually a class of
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PDF uh itex uh itex chap Library here
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you simply say PDF writer uh dot get
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instance and here you need to Simply
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tell
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pass the document that we need to save
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and here it takes the second argument
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the look uh file stream we will be
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simply be telling we need to actually
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save this at this location and the file
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mode will be to actually create because
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we are creating the PDF file so that's
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why we'll put here fil mode. create so
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after you do this guys we need to open
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the document first of all
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for opening the document we'll use the
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open function which is there in this
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object after opening it we need to
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basically say get all the
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images which are present in the images
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folder so basically guys uh if you see
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in the project
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directory in my project directory if I
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open this folder in file explorer so in
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the bin folder debug folder we have this
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images folder right here where all all
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the images are present so these four
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Images are present this PNG jpg image so
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all these four Images we need to pass so
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we will actually read all these images
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one by one so for reading it we will
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actually concatenate the path here
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inside this array string array we'll
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construct this all files array here and
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for looping through all the files we'll
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simply say directory. get files function
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and here we be passing the directory in
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which we need to search so we need to
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search for the images folder which is
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present in the same directory and here
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we need to explicitly tell the
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extensions so jpg star.jpg
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we need and then we need to Simply
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change these methods we need to
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concatenate we also want the files which
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are PNG as well so you'll simply say
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directory get
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files again the same folder but this
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time we also need the files of PNG as
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well and same thing we will do this one
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more time for the webp files as well
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so so put a semi
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Coler uh I think uh what is the problem
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here okay we do need to
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convert this to into array so at last we
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need to Simply call this function to
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array to actually convert this into a
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array so now all these uh this code
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simply means that we have declared this
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all files array which will actually
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search for this folder images it will
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pick all the files which are jpg PNG
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webp and it will construct the array by
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using this function to array and it will
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store all the paths inside this all
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files object so if you try to console
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this let's
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suppose so if you run this now what you
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will see in the console it will print
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out all the paths you will see it will
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say system do string it's a string array
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so it will contain all the
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values so now we need to Simply Loop
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through all the images for looping
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through we'll be using the for each Loop
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in
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C and you'll simply say for each image
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in all the files you'll see
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that we need to Simply uh create a new
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image object in the PDF for creating it
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you'll be using the image Constructor
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image. get
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instance and we'll pass the actual file
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that we are looping through so here we
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are simply telling uh we just need to
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create a brand new image by using the we
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using using it itex sharp library and we
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using this image Constructor like
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this so after we do this we need to
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Simply calculate the position of this
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image calculate the scale and the
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position and the coordinate x and y
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coordinate to actually fit in the page
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for this you'll simply calculate the
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width of the PDF Page by using doc do
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page size dot
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width and here we'll be simply using
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some maths so we will
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subtract this from the left
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margin minus the right margin you can
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change these values accordingly once you
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get the code all the source code is
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given in the
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description so we will calculate this in
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this way whatever is the width of the
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page we are subtracting the left margin
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and the right margin similarly uh we
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will calculate the height as
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well so we'll simply make it dock
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height for this this will become
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height for this we need to subtract the
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top
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margin and the bottom
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margin so then we need to constru conct
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the image width how much you want to put
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the image width so image equal to image
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scaled width whatever is the scaled
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width of the image and similarly the
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height as
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well scaled width
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sorry this will be scaled
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height so whatever is the original width
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and the height of the image we are
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simply storing it in these two variables
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and then we need to Simply say the scale
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factor what is the scale factor you can
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just calculate this by using math. Min
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and then we simply divide the doc
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width divide this by image
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width and similarly the height will be
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dock height divided by the image
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original
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height this is simple maths and uh then
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we need to Simply set this Factor
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by using the function called as scale
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percent and a scale factor whatever is
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the scale factor calculated we'll
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multiply this by 100 to like this and
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then lastly we need to add this page to
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the PDF
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document for this we'll simply say
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Doc new page you need to basically add a
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new page to the PDF document by using
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this new page function and lastly we
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need to add the
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image so for adding this we have the add
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function and here we will be simply add
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the actual image that we
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constructed after setting all the width
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height scale factor lastly we add this
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image to the PDF document that Sol by
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using the add function so this is
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actually in the loop here so this Loop
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will run for each image which is present
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in that images folder so once all the
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images are done we will come to the out
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of this Loop and simply close the PDF
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document so for closing the PDF document
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we have the close function which is
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available it will close the connection
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and after this we can simply open the
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PDF
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file
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automatically so for doing this we
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simply need to say process. start it
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will start a new process in C by using
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this new process start info Constructor
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here we need to Simply pass the location
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where the output file is present output
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file and the second parameter we need to
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set is use
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shell uh use cell
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execute is equal to
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True uh I think let me see what is the
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problem I think I put a
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parenthesis like this you need to do
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like this uh no comma is there so this
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is actually a Constructor we pass the
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actual output file use shell execute is
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s to true this will open the PDF file
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automatically so this is actually the
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program guys and try to uh let me run
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this file now click run you will see it
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will open the PDF document and now it is
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containing all those four images in this
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PDF document if you see the quality of
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the images look tremendous in the PDF
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document it is taking the full width
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full height of that original image so it
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is containing jpg PNG web P images as
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well so all these four Images is
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successfully added to this PDF document
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and we have used this library of c.net
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itext Shar for working with PDF
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documents for inserting images so please
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hit that like button subscribe the
14:23
Channel all the source code is given in
14:24
the description of this video and I will
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be seeing you in the next one
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