Hi,
I was using the new subset font feature introduced in 17.5 and noticed that there are 3 separate bugs. I’m currently trying to use google’s noto sans cjk font family available here:
1) Even though the google noto fonts are otf, calling FontRepository.OpenFont(otfStream, FontTypes.OTF) throws an exception. Using FontTypes.TTF seems to be a workaround.
2) There are rendering issues with the light font that are similar to an earlier post I’ve made here. There are characters that overlap on top of each other in the second line of text. Also, the embedded subset font causes an error to be generated: "When opening up the pdf, the font ‘RWKTIP+NotoSansCJKJPLight’ contains bad /Widths."
3) I’ve created a line object that disappears when doc.FontUtilities.SubsetFonts(Document.FontSubsetStrategy.SubsetEmbeddedFontsOnly); is called. If I comment out the SubsetFonts call, the line object correctly renders.
Here’s the attached sample code that can reproduce the issue:
using (var otfStream = new FileStream(@“NotoSansCJKjp-Light.otf”, FileMode.Open))
using (var otfStream2 = new FileStream(@“NotoSansCJKjp-Bold.otf”, FileMode.Open))
using (var imageStream = new FileStream(@“logo.jpg”, FileMode.Open))
using (var outputStream = new FileStream(@“streamsubsetfont.pdf”, FileMode.Create, FileAccess.ReadWrite))
{
FontRepository.OpenFont(otfStream, FontTypes.TTF);
FontRepository.OpenFont(otfStream2, FontTypes.TTF);
Document doc = new Document();
doc.IsLinearized = true;
Page page = doc.Pages.Add();
page.PageInfo.Width = Aspose.Pdf.PageSize.PageLetter.Width;
page.PageInfo.Height = Aspose.Pdf.PageSize.PageLetter.Height;
page.PageInfo.Margin = new Aspose.Pdf.MarginInfo(27, 27, 27, 27);
TextFragment newText1 = new TextFragment(“っぬむ知個ねへ人人生而自由,在尊严和权利上一律平等。他们赋 有理性和良心, 并应以兄弟关系的精神互相对待。”);
newText1.TextState.Font = FontRepository.FindFont(@“Noto Sans CJK JP Bold”);
newText1.TextState.FontSize = 10;
newText1.TextState.LineSpacing = 5;
TextFragment newText2 = new TextFragment(“っぬむ知個ねへ人人生而自由,在尊严和权利上一律平等。他们赋 有理性和良心, 并应以兄弟关系的精神互相对待。”);
newText2.TextState.Font = FontRepository.FindFont(@“Noto Sans CJK JP Light”);
newText2.TextState.FontSize = 10;
newText2.TextState.LineSpacing = 5;
page.Paragraphs.Add(newText1);
page.Paragraphs.Add(newText2);
doc.ProcessParagraphs();
var imageStamp = new ImageStamp(imageStream)
{
BottomMargin = 27,
LeftMargin = 27,
Height = 7.5,
Width = 37.5,
HorizontalAlignment = HorizontalAlignment.Left,
VerticalAlignment = VerticalAlignment.Bottom
};
var textStamp = new TextStamp(“Test”);
textStamp.TextState.FontSize = 6;
textStamp.TextState.LineSpacing = 3;
textStamp.TextState.Font = FontRepository.FindFont(@“Noto Sans CJK JP Light”);
textStamp.BottomMargin = 27;
textStamp.HorizontalAlignment = HorizontalAlignment.Center;
textStamp.VerticalAlignment = VerticalAlignment.Bottom;
var pageNumberStamp = new PageNumberStamp { Background = false };
pageNumberStamp.TextState.FontSize = 6;
pageNumberStamp.TextState.Font = FontRepository.FindFont(@“Noto Sans CJK JP Light”);
pageNumberStamp.TextState.LineSpacing = 3;
pageNumberStamp.Format = $“© Test | # of {doc.Pages.Count}”;
pageNumberStamp.BottomMargin = 27;
pageNumberStamp.RightMargin = 27;
pageNumberStamp.HorizontalAlignment = HorizontalAlignment.Right;
pageNumberStamp.VerticalAlignment = VerticalAlignment.Bottom;
pageNumberStamp.StartingNumber = 1;
page.AddStamp(imageStamp);
page.AddStamp(textStamp);
page.AddStamp(pageNumberStamp);
page.Header = new HeaderFooter { Margin = new MarginInfo(0, 0, 0, 0) };
var footerLineGraph = new Aspose.Pdf.Drawing.Graph((float)page.MediaBox.Width, (float)page.MediaBox.Height);
var footerLineLength = (float)(page.PageInfo.Width - 2 * page.PageInfo.Margin.Left);
var posArray = new[] { 27, 42, 27 + footerLineLength, 42 };
var footerLine = new Aspose.Pdf.Drawing.Line(posArray)
{
GraphInfo = { LineWidth = 0.75f }
};
footerLineGraph.Shapes.Add(footerLine);
page.Header.Paragraphs.Add(footerLineGraph);
doc.FontUtilities.SubsetFonts(Document.FontSubsetStrategy.SubsetEmbeddedFontsOnly);
doc.Save(outputStream);
}
dfactset: