PDF editors

PDF Edit is useable for very basic functions, such as comment, rotate, select and copy / paste / delete items, a little unstable even with small, simple documents -- in a nutshell, PDF 'Edit' is to Acrobat Professional what Ms Paint 1.0 is to Photoshop CS5. FLPSED is self-described as a 'PDF annotator' by the author, so NOT a PDF editor. GIMP is fine for images, but is really only meant for single-page editing of raster graphics and there are scant useful things you can use it for with PDFs, if you want to maintain any real Postcript/PDF benefits. Qoppa's PDF Studio $50 is only marginally better, Qoppa's Studio Pro $99 -- neither even include OCR features let alone full editing capability, it is really a poor copy of Acrobat Reader (ie. annotate, form fill, redact, comment, paste images, links, stamps) -- -- the main selling point is the multiplatform nature, but for Mac and Windows there are a multitude of vastly better options, eg. Nitro PDF PDF Escape is similar to PDF Edit, but far slower being online and you have to upload/download (as you might do in Google Docs). --------- are there any REAL contenders on linux ?? I love to know -- so far nothing very useful and certainly not of a daily use standard -- I have experimented with WINE, with NitroPDF/Acrobat/Foxit but it seems stability is a big issue.