A new tool for designers (or anyone who needs client input on proofs) is premiering today. ProofHQ is a web-based application for uploading, annotating, commenting and approving proofs with controlled access for multiple clients. It's not Mac-specific, but it's worth mentioning considering the large portion of Mac users (and TUAW readers) who fit into the creative/design category. It doesn't work on the iPhone, (why would you want to upload and proof on an iPhone, really?), but it's fully Safari-compatible and Mac-friendly.

Using ProofHQ's upload page or the Java-based Uploadr, you can send PDF, PSD, GIF, TIFF, JPG, BMP, Word and Powerpoint files and have them converted into Flash-based proofs at full quality. There's currently no support for Pages or Keynote documents, but you can export PDF versions and upload those. PDF files can be multi-page, and vector support is on the way. Comments and various levels of approval can be added from the viewer. You receive a public url, private url and embed code. The embed code makes it easy to incorporate ProofHQ into other collaboration systems such as Basecamp or Central Desktop. There's also direct API integration with Basecamp. New clients who access the proof can subscribe to it without signing up for ProofHQ, making it a less confusing system for clients than some of the other available options.

14 day free trials of all plans are available which allow full access to features. Plans range from the free personal account and the $29USD/month Solo plan up to the enterprise-level Corporate plan at $499USD/month.

[via Download Squad]