From here:
http://www.cic.gc.ca/english/information/applications/guides/5289ETOC.asp#things
Validate your forms
Some forms have a “Validate” button, specifically the
- IMM 1344 (Application to Sponsor, Sponsorship agreement and Undertaking)
- IMM 0008 (Generic Application form for Canada) and
- IMM 5669 (Schedule A).
You should fill out your forms on a computer and validate them electronically to make sure you’ve answered all questions. This reduces mistakes and helps you submit a form that is complete. When you click on the Validate button, any missing information will be identified by a pop-up error message or a red square around the fields that need to be completed.
After being validated, the IMM 1344 and IMM 0008 will create barcode pages (see image below). When you’re preparing your application, place these barcode pages right underneath your checklist.
Note: The IMM 5669 (Schedule A) form will not produce a barcode page when it’s validated.
IMPORTANT: If you have any problems viewing or validating your forms, please see these Help Centre questions:
I can’t open my form in PDF format
After clicking the validate button, nothing happens and I don’t see barcodes.
Note: The Help Centre information about viewing PDF documents applies to all PDF documents.
After you validate the forms to generate barcodes, print the form. Then, the applicable client must sign the form in ink. Unsigned forms will not be accepted.