Set Text Fill to No Color

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   I need to place some "invisible" text within my PDF files, but cannot quite manage it with Quick PDF Library (8.11).
I have tried to use SetTransparency(100), which makes the text invisible when viewing the PDF files. However when viewing the text properties (e.g. using Acrobat), the fill color of the text is still set to a color = the text is visible when printed (note: on some printers - on other printers the text is still invisble when printed).

Are there any way that I can set the text color (fill) to "no color" to ensure that it is not visible in any viewer and not printed on any printer?

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m_kc Members Profile Find Members Posts Beginner Joined: 11 Nov 11 Status: Offline Points: 3	Post Options Post Reply Quote m_kc Report Post Thanks(0) Quote Reply Topic: Set Text Fill to No Color Posted: 11 Nov 11 at 9:23AM
	I need to place some "invisible" text within my PDF files, but cannot quite manage it with Quick PDF Library (8.11). I have tried to use SetTransparency(100), which makes the text invisible when viewing the PDF files. However when viewing the text properties (e.g. using Acrobat), the fill color of the text is still set to a color = the text is visible when printed (note: on some printers - on other printers the text is still invisble when printed). Are there any way that I can set the text color (fill) to "no color" to ensure that it is not visible in any viewer and not printed on any printer?

Ingo Members Profile Find Members Posts Moderator Group Joined: 29 Oct 05 Status: Offline Points: 3530	Post Options Post Reply Quote Ingo Report Post Thanks(0) Quote Reply Posted: 11 Nov 11 at 11:12AM
	Hi m_kc! It seems to me that you want to insert hidden text-signatures ... Why not use: SetCustomInformation GetCustomInformation for this job? Please read here: http://www.quickpdflibrary.com/help/quickpdf/SetCustomInformation.php Only an idea... ;-) Cheers, Ingo

m_kc Members Profile Find Members Posts Beginner Joined: 11 Nov 11 Status: Offline Points: 3	Post Options Post Reply Quote m_kc Report Post Thanks(0) Quote Reply Posted: 11 Nov 11 at 11:20AM
	Thanks for the suggestion. However, I need to add the "invisible" text on each page, since my printing company requires this information to be present on each page in order to process the print job correctly, so unfortunately I am unable to place the information/text in (custom) information fields.

AndrewC Members Profile Find Members Posts Moderator Group Joined: 08 Dec 10 Location: Geelong, Aust Status: Offline Points: 841	Post Options Post Reply Quote AndrewC Report Post Thanks(0) Quote Reply Posted: 14 Nov 11 at 2:42AM
	You could place the text outside the margins of the page. It should still be picked up by your printer but it will never be printer or viewed. You would need to make sure the text is placed outside the CropBox and the MediaBox. Andrew.

m_kc Members Profile Find Members Posts Beginner Joined: 11 Nov 11 Status: Offline Points: 3	Post Options Post Reply Quote m_kc Report Post Thanks(0) Quote Reply Posted: 14 Nov 11 at 9:28AM
	Hi Andrew, Good suggestion - I should work since the printing company does not print to edge but leaves a 5mm unprintable margin in which the text can be placed. Best Regards, Morten