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June 2026

Larger file uploads (10 MB → 40 MB)​

The maximum file size for document uploads has been increased from 10 MB to 40 MB, allowing larger PDF documents to be attached to a signing process.

Integration: Applies to document uploads via the POST /api/process/{processId}/attach endpoint.

Related API: platform update (no specific API version)

Tag-based signature positioning​

Signature positions can be resolved at runtime by searching for a tag string embedded in the PDF, using locator: TAG on the attach endpoint. The tag (\s1\ for index 0, \s2\ for index 1, etc.) marks the upper-left corner of the signature field. Optional offsetX / offsetY (PDF points, −200 to 200) allow fine-tuning, and coordinates are not required.

Integration: Set locator: TAG on a signature position in the POST /api/process/{processId}/attach endpoint.

tip

Embed the tags directly into the PDF before uploading it. Use white text for the tags so they stay invisible in the PDF viewer while remaining detectable by the API.

Related API version: 2.15.0

Reminder configuration​

The release endpoint now supports optional automatic reminders for participants who have not yet completed their signing action. Reminders are configured in the reminder object of the notification node, and the two modes below can be used together.

Both modes use ISO 8601 durations (for example P3D = 3 days), and each value must be between P1D (1 day) and P30D (30 days):

  • interval — a single duration that sends a recurring reminder while the participant is still pending. For example, P3D sends a reminder every 3 days until the participant acts or the process expires.
  • beforeExpiry — an array of durations that send fixed reminders relative to the process expiry (validUntil). One reminder is sent at each offset; for example, ["P5D", "P1D"] reminds 5 days and 1 day before expiry. This mode requires the process to have a validUntil.

Example notification payload on release:

{
  "notification": {
    "locale": "de-CH",
    "reminder": {
      "interval": "P3D",
      "beforeExpiry": ["P5D", "P1D"]
    }
  }
}

Integration: Configure reminders in the notification.reminder object of the POST /api/process/{processId}/release endpoint.

Related API version: 2.17.0