PDFLIB生成矢量PDF原理是调用一个矢量的pdf模板，在此基础上用html2ps把html显示到pdf中.

FPDF生成矢量PDF原理是扩展fpdf引入fpdf_eps function, 在适当位置调用ImageEps()插入矢量eps or ai文件.

next_page()在output.fpdf.class.php里面.
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PDFLIB:
output.pdflib.class.php 添加function

  function add_pdf($pdf_name,$page) {
   	$my_pdf_doc = pdf_open_pdi($this->pdf,$pdf_name,"pdiwarning true",0);
   	$s = pdf_open_pdi_page($this->pdf,$my_pdf_doc,$page,"pdiwarning true");
   	pdf_fit_pdi_page($this->pdf,$s,0,0,"adjustpage");
   	pdf_close_pdi_page($this->pdf,$s);
  }

next_page()添加

$this->add_pdf('vorlage.pdf',1);

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FPDF:
pdf.fpdf.php添加function

function ImageEps($file, $x, $y, $w=0, $h=0, $link='', $useBoundingBox=true){

		$data = file_get_contents($file);
		if ($data===false) $this->Error('EPS file not found: '.$file);

		$regs = array();

		# EPS/AI compatibility check (only checks files created by Adobe Illustrator!)
		preg_match ('/%%Creator:([^\r\n]+)/', $data, $regs); # find Creator
		if (count($regs)>1){
			$version_str = trim($regs[1]); # e.g. "Adobe Illustrator(R) 8.0"
			if (strpos($version_str, 'Adobe Illustrator')!==false) {
				$version = (float)array_pop( explode(' ', $version_str) );
				if ($version>=9)
					$this->Error('File was saved with wrong Illustrator version: '.$file);
					#return false; # wrong version, only 1.x, 3.x or 8.x are supported
			}#else
			#$this->Error('EPS wasn\'t created with Illustrator: '.$file);
		}

		# strip binary bytes in front of PS-header
		$start = strpos($data, '%!PS-Adobe');
		if ($start>0) $data = substr($data, $start);

		# find BoundingBox params
		preg_match ("/%%BoundingBox:([^\r\n]+)/", $data, $regs);
		if (count($regs)>1){
			list($x1,$y1,$x2,$y2) = explode(' ', trim($regs[1]));
		}
		else $this->Error('No BoundingBox found in EPS file: '.$file);

		$start = strpos($data, '%%EndSetup');
		if ($start===false) $start = strpos($data, '%%EndProlog');
		if ($start===false) $start = strpos($data, '%%BoundingBox');

		$data = substr($data, $start);

		$end = strpos($data, '%%PageTrailer');
		if ($end===false) $end = strpos($data, 'showpage');
		if ($end) $data = substr($data, 0, $end);

		# save the current graphic state
		$this->_out('q');

		$k = $this->k;

		if ($useBoundingBox){
			$dx = $x*$k-$x1;
			$dy = $y*$k-$y1;
		}else{
			$dx = $x*$k;
			$dy = $y*$k;
		}

		# translate
		$this->_out(sprintf('%.3f %.3f %.3f %.3f %.3f %.3f cm', 1,0,0,1,$dx,$dy+($this->hPt - 2*$y*$k - ($y2-$y1))));

		if ($w>0){
			$scale_x = $w/(($x2-$x1)/$k);
			if ($h>0){
				$scale_y = $h/(($y2-$y1)/$k);
			}else{
				$scale_y = $scale_x;
				$h = ($y2-$y1)/$k * $scale_y;
			}
		}else{
			if ($h>0){
				$scale_y = $h/(($y2-$y1)/$k);
				$scale_x = $scale_y;
				$w = ($x2-$x1)/$k * $scale_x;
			}else{
				$w = ($x2-$x1)/$k;
				$h = ($y2-$y1)/$k;
			}
		}

		# scale
		if (isset($scale_x))
			$this->_out(sprintf('%.3f %.3f %.3f %.3f %.3f %.3f cm', $scale_x,0,0,$scale_y, $x1*(1-$scale_x), $y2*(1-$scale_y)));

		# handle pc/unix/mac line endings
		$lines = split ("\r\n|[\r\n]", $data);

		$u=0;
		$cnt = count($lines);
		for ($i=0;$i<$cnt;$i++){
			$line = $lines[$i];
			if ($line=='' || $line{0}=='%') continue;

			$len = strlen($line);

			$chunks = explode(' ', $line);
			$cmd = array_pop($chunks);

			# RGB
			if ($cmd=='Xa'||$cmd=='XA'){
				$b = array_pop($chunks); $g = array_pop($chunks); $r = array_pop($chunks);
				$this->_out("$r $g $b ". ($cmd=='Xa'?'rg':'RG') ); #substr($line, 0, -2).'rg' -> in EPS (AI8): c m y k r g b rg!
				continue;
			}

			switch ($cmd){
				case 'm':
				case 'l':
				case 'v':
				case 'y':
				case 'c':

				case 'k':
				case 'K':
				case 'g':
				case 'G':

				case 's':
				case 'S':

				case 'J':
				case 'j':
				case 'w':
				case 'M':
				case 'd' :

				case 'n' :
				case 'v' :
					$this->_out($line);
					break;

				case 'x': # custom fill color
					list($c,$m,$y,$k) = $chunks;
					$this->_out("$c $m $y $k k");
					break;

				case 'X': # custom stroke color
					list($c,$m,$y,$k) = $chunks;
					$this->_out("$c $m $y $k K");
					break;

				case 'Y':
				case 'N':
				case 'V':
				case 'L':
				case 'C':
					$line{$len-1}=strtolower($cmd);
					$this->_out($line);
					break;

				case 'b':
				case 'B':
					$this->_out($cmd . '*');
					break;

				case 'f':
				case 'F':
					if ($u>0){
						$isU = false;
						$max = min($i+5,$cnt);
						for ($j=$i+1;$j<$max;$j++)
							$isU = ($isU || ($lines[$j]=='U' || $lines[$j]=='*U'));
						if ($isU) $this->_out("f*");
					}else
						$this->_out("f*");
					break;

				case '*u':
					$u++;
					break;

				case '*U':
					$u--;
					break;

				#default: echo "$cmd
"; #just for debugging
			}

		}

		# restore previous graphic state
		$this->_out('Q');
		if ($link)
			$this->Link($x,$y,$w,$h,$link);

		return true;
	}

next_page()添加

$this->pdf->ImageEps('header_only.eps', 0, 0, 0, 0);
$this->pdf->ImageEps('footer_only.eps', 0, mm2pt($this->media->height())-62, 0, 0);