Thanks for your inquiry. You can read data from the database and create a HTML/XML for creating PDF document and later can edit any text value using searching/replacing functionalists. Please check following documentation links for the purpose. Moreover, storage related query please check different storage options as below, you may use our cloud storage option or any other as per you convenience.
[Create PDF from HTML](http://www.aspose.com/docs/display/pdfcloud/Create+PDF+from+HTML)
[Create PDF from XML](http://www.aspose.com/docs/display/pdfcloud/Create+PDF+from+XML)
[Working with Text](http://www.aspose.com/docs/display/pdfcloud/Working+with+Text)
Storage option
Work with Aspose for Cloud storage
Work with [third party storages](http://www.aspose.com/docs/display/rest/How+to+Configure+3rd+Party+Cloud+Storages)
Work with documents (using URL) stored at remote servers
Store output documents to Aspose for Cloud or [third party storages](http://www.aspose.com/docs/display/rest/How+to+Configure+3rd+Party+Cloud+Storages)
Please feel free to contact us for any further assistance.