Electronic Signing in Collabora Online

COOL Days 2025 (https://www.collaboraonline.com/events/cool-days-2025/), Budapest

Video record: https://www.youtube.com/live/yq3r2xkqBSo?t=26614

Transcript

1. Electronic Signing in COOL Miklos Vajna Senior Software Engineer 2025-06-04
2. 2/11 Meet Miklos Vajna • From Hungary • More details: https://www.collaboraonline.com/about-us/ • Google Summer of Code 2010 / 2011 • Rewrite of the Writer RTF import/export • Then a full-time LibreOffice developer for SUSE • Finally a contractor at Collabora since 2013
3. 3/11 Motivation Qualified electronic signatures: can be considered as a digital equivalent to handwritten signatures • Create proper electronic signatures in COOL, based on your personal ID / passport • Not share your document with a 3rd party, just the hash of the PDF • Work with partners, so just need to install the partner’s solution, nothing else • Potentially combine with Secure View • Work with visual signing to place a signature widget at a custom position
4. 4/11 Step 1: insert a signature widget Open a PDF in COOL and select Insert → Signature line
5. 5/11 Step 2: position the signature widget Place it similar to your handwritten signature
6. 6/11 Step 3: specify country & provider Select your country and pick one available provider there
7. 7/11 Step 4: sign the document The document hash is sent to eID Easy, which wraps many providers
8. 8/11 Step 5: view the created signature File → Digital signatures can also show these later
9. 9/11 A real signature, verified in Acrobat This time using a real personal ID and the Evrotrust provider  A Qualified Electronic Signature according to EU regulations
10. 10/11 How is esign support implemented? Collabora Online integrates with eID Easy to support many providers • The document hash is extracted • The hash is sent to eID Easy • The hash is signed in a popup, on eID Easy servers or with a redirect (similar to online payments) • The signed hash gets downloaded • The downloaded hash is serialized to the PDF file as an appended signature
11. 11/11 Summary • Sign PDFs from Collabora Online electonically • Create legally recognized electronic signatures • Ensure privacy: only the document hash is sent • Enhance security: can combine with features like Secure View • Use WYSIWYG visual signing