| Summary: | device epswrite sometimes sets too small a bounding box | ||
|---|---|---|---|
| Product: | Ghostscript | Reporter: | David Kinniburgh <davidgkinniburgh> |
| Component: | PS Writer | Assignee: | Default assignee <ghostpdl-bugs> |
| Status: | NOTIFIED INVALID | ||
| Severity: | normal | ||
| Priority: | P4 | ||
| Version: | 8.61 | ||
| Hardware: | PC | ||
| OS: | Windows XP | ||
| Customer: | Word Size: | --- | |
Ghostscript does NOT use the 'bbox' device to determine the BoundingBox with epswrite, but rather determines the non-white area from the page after it is rendered. This PostScript program is flawed because it expects an A4 page, but does nothing to set the pagesize. Perhaps GSView is setting a different default page size, or is performing a pre-process 'bbox' pass on the input file. Ghostscript is working as expected, and is working the same as Adobe CPSI on this substandard input file (that expects a certain page size, but does not set it). This file works fine with: gswin32 -sPAPERSIZE=a4 -sDEVICE=epswrite -q -dBATCH -dNOPAUSE -sOutputFile=out.eps bad.ps |
gswin32 -sDEVICE=epswrite -q -dBATCH -dNOPAUSE -sOutputFile=out.eps bad.ps file bad.ps (below) wrongly sets the bounding box to show only the square - the 'title' (= 'bad.ps') centered above it is lost. file good.ps (below) with a similar structure but different parameters works fine. GSview(4.9) File|Convert|epswrite works fine even with bad.ps - the title is there. gswin32 -sDEVICE=bbox bad.ps gives the correct, larger bounding box. gswin32 -sDEVICE=jpeg -q -r300 -dJPEGQ=100 -dBATCH -dNOPAUSE -sOutputFile=out.jpg bad.ps also omits the title. Similar with png, epsi, etc. ############################################################################# bad.ps %!PS-Adobe-3.0 %%Pages: (atend) %%EndComments %%BeginProlog /L /lineto load def /Lend {/Strlen exch stringwidth pop def} def /LSM {2 copy lineto stroke moveto} def /M /moveto load def /mover {Xp Yp moveto} def /Np {newpath} def /S /stroke load def /Sc {setrgbcolor} def /Setf {Curfnt exch scalefont setfont} def /SM {stroke moveto} def /Slw {72.0000 mul setlinewidth} def /Xposd {/Xpos exch def} def /xydef {/Xp Xpos def /Yp Ypos def} def /Xyprset {dup /Xpres exch cos Strlen mul Xpos add def /Ypres exch sin Strlen mul Ypos add def} def /Xyprset0 {dup /Xpres exch cos Strlen mul Xpos0 add def /Ypres exch sin Strlen mul Ypos0 add def} def /Yposd {/Ypos exch def} def %%EndProlog %%Page: 1 1 /Curfnt /Helvetica findfont def 12 Setf 1.000 1.000 scale 0.000 0.000 0.000 Sc 0.00 0.00 SM 0.00 0.00 translate /Catx 0 def /Caty 0 def 0.00 Xposd 0.00 Yposd (Bad.ps) Lend xydef mover 0.0 Xyprset /Catx Xpres Xpos sub Catx add def /Caty Ypres Ypos sub Caty add def /Xpres 184.543 0.500 Catx mul sub def /Ypres 800.631 0.500 Caty mul sub def S /Xpos Xpres def /Ypos Ypres def (Bad.ps) Lend xydef mover (Bad.ps) show 0.0 Xyprset 0.000 0.000 0.000 Sc Np 56.78 511.04 M 312.30 511.04 L 312.30 766.56 L 56.78 766.56 L 56.78 511.04 L S stroke showpage %%Trailer %%Pages: 1 %%EOF ########################################################################## good.ps %!PS-Adobe-3.0 %%Pages: (atend) %%EndComments %%BeginProlog /L /lineto load def /Lend {/Strlen exch stringwidth pop def} def /LSM {2 copy lineto stroke moveto} def /M /moveto load def /mover {Xp Yp moveto} def /Np {newpath} def /S /stroke load def /Sc {setrgbcolor} def /Setf {Curfnt exch scalefont setfont} def /SM {stroke moveto} def /Slw {72.0000 mul setlinewidth} def /Xposd {/Xpos exch def} def /xydef {/Xp Xpos def /Yp Ypos def} def /Xyprset {dup /Xpres exch cos Strlen mul Xpos add def /Ypres exch sin Strlen mul Ypos add def} def /Xyprset0 {dup /Xpres exch cos Strlen mul Xpos0 add def /Ypres exch sin Strlen mul Ypos0 add def} def /Yposd {/Ypos exch def} def %%EndProlog %%Page: 1 1 /Curfnt /Helvetica findfont def 12 Setf 1.000 1.000 scale 0.000 0.000 0.000 Sc 0.00 0.00 SM 0.00 0.00 translate /Catx 0 def /Caty 0 def 0.00 Xposd 0.00 Yposd (Good.ps) Lend xydef mover 0.0 Xyprset /Catx Xpres Xpos sub Catx add def /Caty Ypres Ypos sub Caty add def /Xpres 212.934 0.500 Catx mul sub def /Ypres 687.066 0.500 Caty mul sub def S /Xpos Xpres def /Ypos Ypres def (Good.ps) Lend xydef mover (Good.ps) show 0.0 Xyprset 0.000 0.000 0.000 Sc Np 85.17 397.48 M 340.69 397.48 L 340.69 653.00 L 85.17 653.00 L 85.17 397.48 L S stroke showpage %%Trailer %%Pages: 1 %%EOF