CSSBoxPdf guess font file url by matching file name and font family name. It's not correct especially for CJK font. I suggest using FontMapper to get font.

Change PDFRender#setFont like this. It is still a POC.

    /**
     * Creates object describing font
     * 
     * @return the font object
     */
    private PDFont setFont(String fontFamily, boolean isItalic, boolean isBold)
    {
        COSDictionary dictionary = new COSDictionary();
        dictionary.setItem( COSName.TYPE, COSName.FONT_DESC );
        PDFontDescriptor desc = new PDFontDescriptor(dictionary);
        desc.setItalic(isItalic);
        desc.setFontWeight(isBold? 700: 400);
        desc.setFontFamily(fontFamily);
        FontMapping<TrueTypeFont> trueTypeFont = FontMappers.instance().getTrueTypeFont(fontFamily, desc);

        PDFont font = null;
        if (trueTypeFont != null) {
            try {
                font = PDType0Font.load(doc, trueTypeFont.getFont(), true);
            } catch (IOException e) {
                throw new RuntimeException(e);
            }
        }
        return font;
    }

Creating pages with page-break doesn't seem to create new page every time.
See attached examples. Also it seems that top padding grows in every new page.
pdf-pagebreak-test-webvector.pdf is created with webvector and master heads of
CSSBox(Pdf) and jStyleParser. Media set to print and page size A4.

pdf-pagebreak-test.html.zip
pdf-pagebreak-test-webvector.pdf
pdf-pagebreak-test-firefox.pdf

Thus it can be easily used in other projects

Pagination works great for the most part with tables, but there is an issue with cells in a table row shifting (up/down?) separately from other cells in the row.

Attached is a PDF showing this issue. This is rendered using screen for the media type, though the same happens using print. It also seems to happen for all tables regardless of styling and other complexity.

I looked at the code (in PDFRenderer.java) a bit to see if perhaps there was a place that table rows could be handled as a unit instead of individual cells within the row, but it doesn't seem to work this way (or be structured this way). I'm happy to work on this if you have any ideas on how this might be handled.

TableCellShifting_AssetSummary.pdf