PDF Differ is a Mac app intended for designers, editors and art directors who need to compare PDFs.

Hello everyone, I’m Marc, the creator of PDF Differ. I have been developing this application for the past year in collaboration with leading art directors from major publishing houses. They are primarily using the application to spot errors during the prepress phase. It’s already being used by several teams who produce children’s books. Key features: - Ignore printer marks such as crop and bleed marks - Compare single pages against spreads - Compare text (still in development) I’m currently running an open beta for 2023 to gather feedback. I want to produce the best PDF comparison tool on the market and hopefully find use cases in other industries. If you’re interested in testing the application for longer than the 30 day trial period, the beta trial key is ph_2023. Thanks for reading, Marc

Chiming in here to say I’m executive art director for a large book publisher and this tool is currently a mandated part of my team’s QC process. It has saved us a ton of time and effort and, most importantly, it’s making our books better.

PDF Differ

PDF comparison tool for creatives

PDF comparison tool for creatives