Texmaker for Ubuntu (64-bit) is a free and cross-platform LaTeX editor, which integrate many tools needed to develop documents with LaTeX, in just one application. Texmaker for Linux includes Unicode support, spell checking, auto-completion, code folding, and a built-in PDF viewer with syntax support and continuous view mode.
Full Specifications
What's new in version 4.0.2
Version 4.0.2 has added feature for new user on detection of acrobat reader 11 and ghostscript 9.07.