Font problems with LoadFromCanvasDC

Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic

   I am using QuickPdf to convert a series of GDI+ commands to a PDF, via the LoadFromCanvasDC function.This mostly works well, but if I use characters with uncommon fonts e.g. Webdings, they just doesnt show up. 

The strange thing about this is that if I use LoadFromCanvasDC with the 0 option (0 = Process the drawing commands as vector graphics, fonts are not embedded) then the characters actually show up, but when I use any of the other options, the symbols are invisible. it's still possible to select them (if you can guess where they are om the page) and if I Copy-Paste them in a texteditor, the ansi character representation comes out.

Of course I can also use the -1 option to get everything i n a single image, but as I will need to be able to serch text and also to be able to view the resulting pdf on multiple platforms, I really need to embed the fonts (or subsets there of) in my PDF.

Any suggestions for a working solution will be appriciated.

Author	Message Topic Search Topic Options Post Reply Create New Topic Printable Version Translate Topic
Johan Havner Members Profile Find Members Posts Beginner Joined: 11 Nov 14 Location: Sweden Status: Offline Points: 3	Post Options Post Reply Quote Johan Havner Report Post Thanks(0) Quote Reply Topic: Font problems with LoadFromCanvasDC Posted: 11 Nov 14 at 3:45PM
	I am using QuickPdf to convert a series of GDI+ commands to a PDF, via the LoadFromCanvasDC function. This mostly works well, but if I use characters with uncommon fonts e.g. Webdings, they just doesnt show up. The strange thing about this is that if I use LoadFromCanvasDC with the 0 option (0 = Process the drawing commands as vector graphics, fonts are not embedded) then the characters actually show up, but when I use any of the other options, the symbols are invisible. it's still possible to select them (if you can guess where they are om the page) and if I Copy-Paste them in a texteditor, the ansi character representation comes out. Of course I can also use the -1 option to get everything i n a single image, but as I will need to be able to serch text and also to be able to view the resulting pdf on multiple platforms, I really need to embed the fonts (or subsets there of) in my PDF. Any suggestions for a working solution will be appriciated.

Johan Havner Members Profile Find Members Posts Beginner Joined: 11 Nov 14 Location: Sweden Status: Offline Points: 3	Post Options Post Reply Quote Johan Havner Report Post Thanks(0) Quote Reply Posted: 13 Nov 14 at 7:22AM
	Update: the symbol I was after was a small i encircled. As I searched fo a solution, I found that this character occurs (with small variations) in several places in unicode. What finally worked, was switching from writing the letter i in 'Webdings' font to write U+24d8 in 'Arial Unicode MS' instead. The effect is the same: A subset of the font is embedded in the document. But this approach works and shows the glyph i want, even when viewed on different platforms, so hurray for that! The real question remains: Why did it not work to embed Webdings, when Arial Unicode MS worked exactly as it should? To be clear, an 'i' printed in Webdings does not look exactly the same as 'U+24d8' in Arial Unicode MS, but it works just as well for me, since I was only after an encircled small letter i

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(1) Quote Reply Posted: 19 Nov 14 at 10:44AM
	Johan, WebDings and other Symbol fonts are using a different encoding table which it not currently supported by the EMF import functions such as LoadFromCanvasDC. This is on our todo list for an upcoming version. Andrew.