Click here to Skip to main content
14,302,596 members

Gios PDF .NET library

Rate this:
4.90 (154 votes)
Please Sign up or sign in to vote.
4.90 (154 votes)
18 Apr 2005LGPL3
A .NET library for generating impressive PDF reports.

Image 1


This article describes how to use the Gios Pdf.NET open source library, a complete object-oriented .NET library for generating impressive reports with few lines of code.


I started writing this library because I really couldn’t find a good C# library for exporting my reports. When you open a PDF document with Notepad to find out if it’s possible to edit it… well… you change your mind!

...But if you download the PDF format specifications from Adobe’s official site… you can demystify everything!

In this article, it’s not my intention to teach “how to write a clone of my library” but “how to use it” … By the way, if you want to try to write your own library… try it: it’s not impossible and it's a good (and difficult!) exercise!

Using the code

Start instantiating the document with a new PdfDocument object. Remember to set the document format. In this case we specify width and height in centimeters. Document format is provided by the PdfDocumentFormat class:

PdfDocument myPdfDocument = 
  new PdfDocument(PdfDocumentFormat.InCentimeters(21,29.7));

Now we create a table of 100 lines, 6 columns and 4 points of padding:

PdfTable myPdfTable = 
  myPdfDocument.NewTable(new Font("Verdana",12),200,6,4);

Importing data from the datatables... (also column names for the headers!):


Set the format for correct date-time representation:


Now we set our Graphic Design: Colors and Borders...


With just one method, we can set the proportional width of the columns. It's a "percentage like" assignment, but the sum can be different from 100.

myPdfTable.SetColumnsWidth(new int[]{5,25,16,20,20,15});

You can also set colors for a range of cells, in this case, a row:


Now we set some alignment... for the whole table and then, for a column:


This is the most important feature of the library: each page generated by the table can be managed in all the details:

while (!myPdfTable.AllTablePagesCreated)
    // we create a new page to put the generation of the new TablePage:

    PdfPage newPdfPage=myPdfDocument.NewPage();
    PdfTablePage newPdfTablePage = 
      myPdfTable.CreateTablePage(new PdfArea(myPdfDocument,48,120,500,670));

    // we also put a Label 
    PdfTextArea pta=new PdfTextArea(new Font("Verdana",26, FontStyle.Bold), 
      Color.Red, new PdfArea(myPdfDocument,0,20,595,120), 
      ContentAlignment.MiddleCenter,"Contact List");

    // nice thing: we can put all the objects
    // in the following lines, so we can have
    // a great control of layer sequence... 


    // Now we create a loop for serching for people born in 1968. If we find
    // one, we will draw a circle over
    // the birthday cell. This is possible using the
    // the CellArea, that is the Area occupied by a rasterized Cell.
    for (int index=newPdfTablePage.FirstRow;index<=newPdfTablePage.LastRow;index++)
       if (((DateTime)myPdfTable.Rows[index][2].Content).Year==1968)
          PdfCircle pc=newPdfTablePage.CellArea(index,2).InnerCircle(Color.Blue,2);

    // we save each generated page before start rendering the next.


At last... remember to save the document!


And this is the result:

Image 2

Remember, you can also output the PDF to a generic Stream. These are the lines for a Web Response:



  • April 18, 2005 - Initial release.


This article, along with any associated source code and files, is licensed under The GNU Lesser General Public License (LGPLv3)


About the Author

Paolo Gios
Web Developer
Italy Italy
Freelance software ASPNET / C# Software Developer

I live in Torino, Italy

my homepage is:

Comments and Discussions

GeneralGios PDF Export to PDF or Crystal Report Export to PDF (Using Report viewer and Report Document) Pin
TheebaBala11-Apr-08 10:36
memberTheebaBala11-Apr-08 10:36 
GeneralDownload 1 million pages of PDF Pin
TheebaBala9-Apr-08 8:00
memberTheebaBala9-Apr-08 8:00 
QuestionHow to embed bar code font in your pdf library? Pin
krislye25-Mar-08 7:36
memberkrislye25-Mar-08 7:36 
GeneralSome error Pin
Member 317841025-Mar-08 0:27
memberMember 317841025-Mar-08 0:27 
Generalset Row Height Pin
BhaveshPatel18-Feb-08 5:56
memberBhaveshPatel18-Feb-08 5:56 
QuestionExcellent Job Dood Pin
BhaveshPatel11-Feb-08 9:27
memberBhaveshPatel11-Feb-08 9:27 
GeneralRe: Excellent Job Dood Pin
Paolo Gios11-Feb-08 10:44
memberPaolo Gios11-Feb-08 10:44 
GeneralRe: Excellent Job Dood Pin
BhaveshPatel11-Feb-08 12:05
memberBhaveshPatel11-Feb-08 12:05 
GeneralQuestion about using this Library with an Existing PDF Pin
cinamon5-Feb-08 17:22
membercinamon5-Feb-08 17:22 
GeneralFont Pin
mikyduke29-Jan-08 21:13
membermikyduke29-Jan-08 21:13 
GeneralUnable to convert HTML content in Datatable to PDF format Pin
ggpradeepbabu19-Jan-08 22:02
memberggpradeepbabu19-Jan-08 22:02 
QuestionSecurity Error when running in Production Pin
dev_4u200013-Jan-08 22:04
memberdev_4u200013-Jan-08 22:04 
GeneralThere was an error opening this document. The file is damaged and could not be repaired. Pin
varsha6-Dec-07 19:59
membervarsha6-Dec-07 19:59 
QuestionHow can I export a ASP.NET webform? Pin
sarathmns14-Nov-07 4:56
membersarathmns14-Nov-07 4:56 
Questionhow to write text files? Pin
rao_1025-Oct-07 10:22
memberrao_1025-Oct-07 10:22 
GeneralCan't tee off with this Library Pin
R450D124-Oct-07 21:14
memberR450D124-Oct-07 21:14 
Questiontemplate Pin
davidello7523-Oct-07 5:35
memberdavidello7523-Oct-07 5:35 
GeneralBug Pin
dennizsoftware.se16-Oct-07 6:19
memberdennizsoftware.se16-Oct-07 6:19 
NewsRe: Bug Pin
Edwin Brunner24-Apr-08 5:53
memberEdwin Brunner24-Apr-08 5:53 
GeneralBug in PDF output Pin
IP69-Oct-07 10:38
memberIP69-Oct-07 10:38 
QuestionDatagrid export to pdf format Pin
mdfarooq7827-Sep-07 0:09
membermdfarooq7827-Sep-07 0:09 
QuestionDataGrid to PDF Pin
That's Aragon20-Sep-07 19:47
memberThat's Aragon20-Sep-07 19:47 
QuestionHow to Convert a office word document to pdf ? Pin
VenuGoapal10-Sep-07 4:51
memberVenuGoapal10-Sep-07 4:51 
GeneralProblem with FontStyle Pin
Alessandro Papaleo9-Sep-07 23:24
memberAlessandro Papaleo9-Sep-07 23:24 
GeneralSetting Fixed Row Height/Column Width Pin
gkinu26-Aug-07 20:55
membergkinu26-Aug-07 20:55 

General General    News News    Suggestion Suggestion    Question Question    Bug Bug    Answer Answer    Joke Joke    Praise Praise    Rant Rant    Admin Admin   

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.

Posted 18 Apr 2005


558 bookmarked