What File Types Does Sertifi Support for Documents?

Signature documents

These are documents sent for signing. Supported file types:

• PDF (.pdf)
• Word/Text (.doc, .docx, .odt)
• Spreadsheets (.csv, .ods, .xls, .xlsx, .xps)
• Images (.bmp, .jpg, .jpeg, .png, .tif, .tiff)
• Web (.htm, .html)

Reference documents

These are documents included for the signer to read but not sign. Supported file types include everything above plus: .docm, .dotx, .wps, .oxps, .xlsb, .xlsm, .ppt, .pptm, .pptx, .emf, .eps, .gif, .mht, .mhtml, .webarchive, .eml, and more.

Tip

PDF is the recommended format for signature documents — it preserves layout and formatting most reliably across all devices.