PDF Stacks vs Pencil Project

A side-by-side look at PDF Stacks and Pencil Project. For an in-depth review of either product, follow the links below.

PDF Stacks

Office & Productivity

PDF Stacks is a PDF management software that allows users to easily merge, split, organize and manage PDF documents. It has an intuitive interface and useful features like OCR, annotation tools, password protection and more.

pdfdocumentmanageorganizemergesplitocrannotation

Full review → Alternatives

Pencil Project

Development

Pencil Project is a free and open source GUI prototyping and mockup tool. It allows users to create wireframes and prototypes for software interfaces and websites quickly and easily, without programming knowledge.

wireframingmockupsguidesign

Full review → Alternatives