Sometimes you need to sign or fill out PDF forms while you're away from your Mac. Here's how to get that paperwork done on your iPhone or iPad.

If you would like to sign a PDF and have a Mac computer a feature is already integrated into the macOS. Sign PDF documents with a signature ...

If a signature is not validated in a PDF, we see Validity unknown with a question mark. You need to validate the signature to make it valid.

Learn how to create fillable PDF forms for free with this step-by-step guide. Save time, reduce errors, and streamline your workflow today.