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With metric kerning, in a text that uses several fonts, the program must decide which kerning table to use when two consecutive characters belong to different fonts — the table from the font of the first character, or the second one — or to avoid kerning altogether. In this case, optical kerning is preferable.
Inkscape is able to write and edit text with tools available for changing font, spacing, kerning, rotation, flowing along the path or into a shape. Text can be converted to paths for further editing. The program also has layers (as well as objects) feature that allows the user to organize objects in a preferred stacking order in the canvas.
Kerning contrasted with tracking (letter spacing): with spacing the "kerning perception" is lost. While tracking adjusts the space between characters evenly, regardless of the characters, kerning adjusts the space based on character pairs. There is strong kerning between the "V" and the "A" and no kerning between the "S" and the "T".
PDFtk (short for PDF Toolkit) is a toolkit for manipulating Portable Document Format (PDF) documents. [3] [4] It runs on Linux, Windows and macOS. [5] It comes in three versions: PDFtk Server (open-source command-line tool), PDFtk Free and PDFtk Pro (proprietary paid). [2] It is able to concatenate, shuffle, split and rotate PDF files.
DirectWrite is a text layout and glyph rendering API by Microsoft.It was designed to replace GDI/GDI+ and Uniscribe for screen-oriented rendering and was first shipped with Windows 7 and Windows Server 2008 R2, as well as Windows Vista and Windows Server 2008 (with Platform Update installed). [1]
My background for a large part of my software engineering experience has been in prepress (from the 80's on). Back then, the groups I was part of referred to the kerning values in the opposite way that they're referred to here. Kerning the "o" under the "T" (a closing in) was known as "positive kerning", and used positive values.
This is called protrusion, margin kerning, or hanging punctuation. Multiple different versions of the same glyph with different widths may be used. This method was used by Gutenberg in the 42-line bible , [ 3 ] but is less easy now because few fonts come with multiple versions of the same glyph.
QuarkXPress also offers the ability for composite work-flows, both with PostScript and PDF output. QuarkXPress offers layout synchronization, multiple undo/redo functionality, XML and web page features, and support for direct PDF import and output. Documents can be verified before printing. This high-level print preview automatically identifies ...