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cpdf_save
Description
Saves the current graphical state of the PDF document. This includes graphics parameters such as clipping path, coordinate system, current point, dash pattern, flatness, line cap style, line join style, line width, miter limit and color parameters like fill and stroke colors. In addition, some PDF parameters are saved including character spacing, word spacing, horizontal scaling, leading, font, fontsize, text rendering and text rise.
In the example below, try commenting out the lines calling cpdf_save() and cpdf_restore() to measure the effect of saving and restoring the environment.
Example
Example 148. Save and restore text state
// start a PDF document $cpdf = cpdf_open(0, "test.pdf"); // create a 600x400 page cpdf_page_init($cpdf, 1, 0, 600, 400, 1); // display text in document cpdf_begin_text($cpdf); cpdf_set_font($cpdf, "Helvetica", 15, "WinAnsiEncoding"); cpdf_set_text_pos($cpdf, 50, 300); cpdf_show($cpdf, "This is horizontal text"); // save the current document state cpdf_save($cpdf); // move and rotate the coordinate system cpdf_translate($cpdf, 20, 20); cpdf_rotate($cpdf, 90); // move drawing position cpdf_set_text_pos($cpdf, 10, 10); // display text cpdf_show($cpdf, "vertical text"); // restore the documents previous state cpdf_restore($cpdf); // draw more horizontal text // note use of cpdf_continue_text() for effect cpdf_set_leading($cpdf, 15); cpdf_continue_text($cpdf, "horizontal text continues"); cpdf_end_text($cpdf); // close and write document cpdf_finalize($cpdf); cpdf_close($cpdf);