HSQLDB vs PDFpen
A side-by-side look at HSQLDB and PDFpen. For an in-depth review of either product, follow the links below.
HSQLDB
Development
HSQLDB is a relational database management system written in Java. It supports embedded and server modes, ACID transactions, standard SQL, JDBC API, and has a small footprint.
javajdbcsqlrdbmsembeddedserver
PDFpen
Office & Productivity
PDFpen is a PDF editing software for Mac that allows users to easily edit, annotate, and sign PDF documents. It has tools for adding text, images, signatures, highlights, shapes, and more to PDFs.
pdfeditorannotateeditmac