What are the best Linux PDF editors?

Platforms:Windows, Mac, Unix

Exports:.uof;uot;uos;uop; .dif; .swf; .xpm; .xml; .xls;xlw;xlt; .wmf; .txt; .tif;tiff;sxm; .svm; .svg; .slk; .rtf; .ras; .pxl; .psw; .ppt;pps;pot; .png; .pgm;pbm;ppm; .pdf; .pdb; .pct; .odt;fodt;ods;fods;odp;fodp;odb;odg;fodg;odf; .mml; .met; .jpg;jpeg; .html;htm; .gif; .eps; .emf; .docx;xlsx;pptx; .doc;dot; .dbf; .csv;txt; .bmp; .xls;xlw;xlt; .doc;dot; .sxm; .sdw;sgl;vor; .sdc; .sda;sdd;sdp

Real-time collaboration:No

Imports:.wpd; .wk1; .wks; .123; .cdr; .cmx; .xpm; .xml; .xls; .xlw; .xlt; .xbm; .wps; .wmf; .wb2; .txt; .tif; .tiff; .tga; .sxw; .stw; .sxc; .stc; .sxi; .sti; .sxd; .std; .sxm; .svm; .svg; .slk; .sgv; .sgf; .rtf; .ras; .pxl; .psw; .psd; .ppt; .pps; .pot; .png; .plt; .pgm; .pbm; .ppm; .pdf; .pdb; .pcx; .pct; .pcd; .pages; .odt; .fodt; .ods; .fods; .odp; .fodp; .odb; .odg; .fodg; .odf; .mml; .met; .jtd; .jtt; .jpg; .jpeg; .hwp; .html; .htm; .gif; .eps; .emf; .dxf; .docx; .xlsx; .pptx.doc; .dot; .dif; .dbf; .csv; .txt; .cgm; .bmp; .602; .sxm; .sdw; .sgl; .vor; .sdc; .vor; .sda; .sdd; .sdp; .vor; .ase; .vsd

Platforms:Linux, Windows, MacOS, BSD, Unix

License:Opensource

Platforms:Windows, Mac, Unix

License:GPLv2

Initial Release:2003

Platforms:Online

Languages:English, Spanish, German, French, Italian, Portuguese, Russian