For creating PDF from images, txt, ms office files (word, excel), and PDF file processing, just try following solution:
I. Scan to PDF / Image to PDF (Free)
I would recommend Foxonic Express (Free Edition) - a handy free image to PDF converter.
just 2 steps, u can convert images to PDF with Foxonic Express:
http://www.caisdata.com/faq/how-to-convert-image-to-pdf.htm
u can learn more info about Foxonic Express from here:
http://www.caisdata.com/foxonicexpress.htm
II. Manage PDF
I would recommend Foxonic Professional, a multi-purpose PDF tool, just like a Swiss Army Knife for PDF file processing.
Foxonic Professional is an All-in-One PDF managing tools, it contains: "PDF Document Info Explorer", "PDF Protector", "PDF Merger", "PDF Splitter", "PDF Page Extractor", "PDF Page remover", "PDF Cropping Tool", "Multiple PDF Pages per Sheet Printing Tool", "PDF Rotator", "PDF Font Embedding Tool", "PDF Scale Up/Down Tool", "PDF Meta Data Modifier", "PDF DPI Changing Tool", "PDF Slide Show/Presentation Maker", "PDF Optimizer", "PDF Stamper", "PDF Permission Modifier", "PDF Password Remover", "PDF Page Dimension Changing Tool", "JPEG to PDF Converter", "TIFF to PDF Converter", and more.
*** An All-in-One PDF managing tool with affordable price.
u can learn more info about Foxonic Professional from here:
http://www.caisdata.com/foxonic.htm
III. Office to PDF
Recommend "SaveAsPDFandXPS.exe", an MS Office Add-in. u can get it for FREE from here:
http://www.microsoft.com/downloads/details.aspx?FamilyID=4d951911-3e7e-4ae6-b059-a2e79ed87041&displaylang=en
IV. Print to PDF
lots of free PDF printer, just search it with google ("free pdf printer") and select one that best suit ur needs.
V. Read PDF (Free)
(1) for best compatibility with PDF files, try Adobe PDF Reader. get it from here:
http://get.adobe.com/reader/
(2) for portability, less system resource usage, try Foxit Reader, a light PDF reader.
VI. Edit PDF
(1) for best compatibility and stability when editing PDF files, recommend Adobe Acrobat, although
it's expensive.
(2) free alternative, recommend OpenOffice + PDF Import Plug-in