AddWatermark
AddWatermark loads a single page PDF and superimposes that page onto one or more pages in the input document.
Properties
Input
The following properties specify the PDF document to be loaded and modified by the operation:
File path
Path to the PDF file.
Authentication type
PDF files can be protected using a password or a certificate, this field indicates which type of authentication to attempt when loading the PDF.
None
The document is unprotected and can be opened immediately.Password
The document is protected by a password.Certificate
The document is protected by a certificate.
All passwords entered into this function's properties will be visible in plain text in the Linx solution file and in the compiled .Net assembly.
Certificate protected files are not supported by the "Fill form", "Sign", "Add watermark" and "Concatenate" operations.
If you need to use the operations on a certificate protected document, first remove the certificate protection using the "Change protection" operation. The certificate must include the private key in order to be able to load the document.
Output
The following properties specify options for saving the PDF document after it has been modified.
File path
Path to the PDF file to write to.
Watermark
File path
The path to a single-page PDF document to use as the watermark.
Authentication type
Authentication type required to open the PDF file.
None
The document is unprotected and can be opened immediately.Password
The document is protected by a password.Certificate
The document is protected by a certificate.
Only displayed when Authentication type is 'Password'.
Password
Password required to access the PDF file.
Only displayed when Authentication type is 'Certificate'.
Certificate source
Source to load the certificate from:
- File - Load a certificate from a .pfx file.
- Store - Load a certificate from the windows certificate store.
Certificate file path
Path to a .pfx file containing a certificate.
Certificate file password
Password needed to open the certificate file.
Misc
Pages
The pages to add the watermark to. A dash can be used to specify a range of pages, and multiple ranges can be specified if they are seperated by a comma. For example "1-3, 5" will select pages 1,2,3 and 5.
Leave this blank to add the watermark to all pages.
Position
Options:
Above original
Draws the watermark above the original document contents.Below original
Draws the watermark below the original document contents.