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PDF Burger is a reliable online tool to convert Doc to PDF, Excel to PDF, Power Point to PDF and other document formats.

PDFMerge! lets you merge your PDF files online. No installation, no registration, its free and easy to use.

Free service to merge and/or overlay several images (photos, pictures, graphics, etc.) to create a new image.

Sciweavers is a bookmarking network for researchers to share and explore research paper preprints grouped by conference name and year or subject area.

The best free tool to merge and combine your PDF documents and create a new PDF file - a nice service without any limitations, no download required and it’s totally free.

Free online tool to convert any images or multiple pictures to a PDF file - without any limits, no download required and entirely free.

Create PDF from any Windows application using Document Converter Pro! Batch convert docx, xlsx, pptx, eml, msg, dwg, dwf to PDF or Image. Print to PDF or Image from any Windows application.Convert. Server-side batch conversion!

Instructables is the Biggest How To and DIY community where people make and share inspiring, entertaining, and useful projects, recipes, and hacks.

Fotor.com made photo editing and sharing simple by offering you powerful all-in-one photo editing tools on your iPhone, Android phones, PCs, Mac or online browser.

Yahoo! Answers is a new way to find and share information. You can ask questions on any topic, get answers from real people, and share your insights and experience.

Reviews and free software downloads for Windows, Mac, Palm, Pocket PC, and Mobile Phones. The best programs and games. Buy software directly online.

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A-PDF Solution is a PDF software developer who focuses on providing affordable Acrobat PDF tools and customization service for personal and small business.