PDF-Security 

Protect PDF files against unauthorized access and encrypt them! The program limits the access to PDF documents. You decide if a PDF file can be printed in th Acrobat Reader or if somebody may copy or edit the text. You can deside if the user have to
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Click2PDF 

Click2PDF - Easily Turn any Windows files into virus-free, non-editable, portable PDFs. Click2PDF preserves the graphics, colors, fonts, & formatting, and you can instantly e-mail documents to anyone.
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PADPDF 

PADPDF is a TXT2PDF maker with an easy to use notepad editor. Freeware
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PDF 2 HTML 

You can't simply open PDF files in Word and edit them... Wrong! PDF 2 HTML can open PDF files. It recognizes the texts, the layout and many graphics. Then you can save this as HTML, RTF or TXT file. You can open these files in Word or Frontpage etc.
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PEERNET File Conversion Center 

The File Conversion Center is a Microsoft Windows application that enables you to quickly and easily convert office documents, spreadsheets, web pages, PostScript files, and more into image or PDF files. (Trial key required)
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pdfcrypt 

pdfcrypt allows you to encrypt a PDF (40 bits and 128 bits), set permissions, add user and owner password. For example you can encrypt a pdf without to allow to print it. The button to print the file will be disabled in Acrobat Reader application.
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