PHP Script to Open/Save/Edit/Print PDF Construction Drawings. Phase 1

I need a a PHP Developer that develop a script to open/save and edit PDF Documents, including Construction PDF Documents, Documents will be uploaded and saved on a multi user basis to the server, must be able minimally open/edit (annotate - create text/text-box/Rubber Stamp/ ability to draw lines and squares and print. Must be able to create font/line/opacity colors on a per item condition. Must save and store this information so when PDF is re-opened all added concitions will be loaded. This must must be able to be further developed into a PDF OnScreen Construction TakeOff system, Must be able to save and store annotations/etc/and location of PDF file into my MySQL database on a per user basis, user database is complete, but will need to add the above information. Open Source should be considered first, Phase 2 will be a continuation of this module. Please contact with any questions. Database and Website Design to be provided, developer may work on my dedicated sever. Please see [login to view URL] for basic design.