Archive for April 24, 2011

Free and Great PDF Creators– Instantly Convert Documents To PDF

Reasons to use Free PDF Creators:


  • PDF Creators convert almost any kind of documents instantly in to PDF. They are easy to use most of them require less than 4 clicks to create a PDF document. You can convert to PDF any type of printable document (i.e. DOC, XLS, PPT, PUB, DOCX, XLSX, PPTX, PUBX, HTML, TXT,…).

  • Saves you money – No need to sped a dime. There are other commercial PDF converters such as NovaPDF, Adobe Acrobat Suit, PDF Studio. If you do not want to pay, then use software like PDFCreator, doPDF etc.

  • No GhostScript or any 3rd party components needed.

  • PDF Creators are installed as virtual printer, that means, you need to print the document via the virtual printers to save as PDF. PDF Creators are not PDF Readers. You need software like Adobe Acrobat Reader to read the converted PDF documents.



Using doPDF you can convert to PDF in two ways:

  • Print to PDF via the virtual printer driver doPDF. You would do this exactly as you print to a regular printer, just the result will be a PDF file, not a printed piece of paper.
  • Using the doPDF Startup window. doPDF has an executable file (accessible from the start program group) that you can run in order to start a conversion wizard.



PDFCreator is a free tool to create PDF files from nearly any Windows application.

  • Create PDFs from any program that is able to print
  • Security: Encrypt PDFs and protect them from being opened, printed etc
  • New: Digitally sign your PDFs to ensure that you are the author and the file has not been modified.


qvPDF is a PDF creator for Windows. It’s implemented as printer driver and uses plugins to execute different actions after creating the PDF.


With FreePDF you can produce pdf files from all applications. Select simply file, pressures and the printer FreePDF. With the results you can be able to be seen also in printing.


PDFedit is free and open source library for manipulating PDF documents.



PDFescape – Free PDF Editor & PDF Form Filler.

Quantum GIS Open Source Alternative To ArcGIS

ArcGIS is a popular GIS – A geographic information system (GIS) that integrates hardware, software, and all forms of geographically referenced information. ArcGIS allows us to view, understand, question, interpret, and visualize data in many ways that reveal relationships, patterns, and trends in the form of maps, globes, reports, and charts. GIS is the merging of cartography, statistical analysis and database technology. GIS can be used in geographical, archaeological or land surveying studies. There are many uses of a GIS. ArcGIS is popular and as usual comes with a price.


If you are looking for a free and open source solution which is similar to ArcGIS, then there is an option – Quantum GIS. Quantum GIS (QGIS) is a user friendly Open Source Geographic Information System (GIS) that runs on Linux, Unix, Mac OSX, and Windows. QGIS supports vector, raster, and database formats. QGIS is licensed under the GNU Public License.



Core features of QGIS:

  • Raster and vector support
  • Support for nonspatial tables
  • GRASS  Integration
  • Extensible plugin architecture
  • Digitizing tools
  • Print composer
  • Python language bindings
  • OGC support (WMS, WFS)
  • Overview panel
  • Spatial bookmarks
  • Identify/Select features
  • Edit/View attributes
  • Feature labeling
  • On the fly projection

Open Source Source Insight Alternatives

Source Insight is one of the popular commercial Code Browsers and Analyzers for for C/C++, C#, and Java. So is Understand another commercial tool. They are good but not cheap. If you are free tools guy or a small time developer who can not afford such tools, there are some alternatives. Of course, improvements are required for these free tools but they are good enough to start with.

Code Blocks

Code::Blocks is a free C++ IDE built to meet the most demanding needs of its users. It is designed to be very extensible and fully configurable. Built around a plugin framework, Code::Blocks can be extended with plugins. Any kind of functionality can be added by installing/coding a plugin. Compiling and debugging functionality is already provided by plugins!

Disadvantage is it supports just C++. More is here.



Source-Navigator is a source code analysis tool. With it, you can edit your source code, display relationships between classes and functions and members, and display call trees. Check it out.


Some more resources (via Stack overflow)

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