PDF417 is a stacked linear barcode format used in a variety of applications such as transport, identification cards, and inventory management.
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Files with PPTX extension are presentation files created with popular Microsoft PowerPoint application. Unlike the previous version of presentation file format PPT which was binary, the PPTX format is based on the Microsoft PowerPoint open XML presentation file format. A presentation file is a collection of slides where each slide can comprise of text, images, formatting, animations, and other media.
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You can also sign other file formats. Please see the list below.