Signing PDF Documents
- Benefits of Signature Services
- Signing with DeepSign
- Signing with Skribble
- Signing with a PDF app
- Changing the Signature Service
Benefits of Signature Services
When signing PDF documents electronically, a distinction must be made between integrated signing services and the signature via a local PDF app. In buildagil, the signing services DeepSign and Skribble are directly integrated. These providers offer a legally regulated signing process in accordance with ZertES (Switzerland) and eIDAS (EU), including identity verification, qualified certificates, and traceable logging. Additionally, it is possible to sign PDF documents directly in a local PDF app—particularly for use cases without legal requirements for written form.
Selecting the "Sign" option from a document's context menu opens a dialog box where you can select the desired signature service.
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Signing with DeepSign
After selecting DeepSign in the signature dialog, the document automatically opens in DeepSign, where it can be further processed.
Signed documents are then saved back to buildagil. This creates a copy of the document with the extension "_signed." The signed documents can also be downloaded from DeepSign and then uploaded back to buildagil. In this way, the existing document can be stored on buildagil as New version.
For detailed information on how to use DeepSign, see the DeepSign documentation: DeepSign Support.
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Signing with Skribble
After selecting Skribble in the signature dialog, the document automatically opens in Skribble, where it can be further edited.
The document is then automatically opened in Skribble, where it can be further edited. Signed documents are then saved back to buildagil. In the process, a copy of the document with the extension "_signed" is created. The signed documents can also be downloaded and then uploaded back to buildagil. This allows the existing document to be saved as a new version on buildagil.
For more information on using Skribble, visit the Skribble Help Center: Skribble Help Center.
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Signing with a PDF app
PDF documents can also be signed directly in a local PDF app—such as PDF-XChange, Adobe Acrobat, Bluebeam, or Foxit. To do this, the Buildagil Opener must be installed and the desired PDF program must be connected. For more information, see the following article: Editing PDF Documents with Local Programs. After selecting "PDF App" in the signature dialog, the document opens in the connected PDF app, where it can be signed.
PDF-XChange
The document can be signed in PDF-XChange using the "Sign Document" option. For more information, see the following article and the PDF-XChange help page: Editing PDFs with PDF-XChange, PDF-XChange Help Page.
The signed document can then be uploaded back to buildagil. You can find the recommended settings for saving signed documents with PDF-XChange in the following article: Recommended Settings for PDF-XChange.
Adobe Acrobat
The document can be signed in Adobe Acrobat using the "Add Signature" option. For more information, see the following article and the Adobe Acrobat help page: Editing PDFs with Adobe Acrobat, Adobe Help Center.
The signed document can then be uploaded back to buildagil.
Bluebeam
The document can be signed in Bluebeam using the "Sign Document" feature. For more information, see the following article and the Bluebeam help page: PDF Editing with Bluebeam, Technical Support from Bluebeam.
The signed document can then be uploaded back to buildagil.
Foxit
The document can be signed in Foxit using Foxit eSign. For more information, see the following article and the Foxit help page: PDF Editing with Foxit, Foxit Help Page.
The signed document can then be uploaded back to buildagil.
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Changing the Signature Service
After opening a document via a signature service or a PDF app, a message appears at the bottom of the screen. You can click "Change Settings" to reopen the dialog for switching signature services. With DeepSign and Skribble, a message appears that allows you to reopen the signature service dialog.
Two messages appear in the PDF app: one for reselecting the signature service and one for changing the associated PDF program. For more information on changing the PDF program, see the following article: Editing PDF Documents with Local Programs.
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Updated on: 26/06/2026