diff options
| -rw-r--r-- | gs/Resource/Init/pdf_base.ps | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/gs/Resource/Init/pdf_base.ps b/gs/Resource/Init/pdf_base.ps index 22b52cae7..994717e23 100644 --- a/gs/Resource/Init/pdf_base.ps +++ b/gs/Resource/Init/pdf_base.ps @@ -822,8 +822,10 @@ currentdict /no_debug_dict undef % may have preceded the EOL, such as spaces or tabs. Thus we back up one % character and scan until we find the \n terminator. /stream { % <dict> stream <modified_dict> - dup /Length oget 0 eq { - dup /Filter undef % don't confuse any filters that require data + dup /Length knownoget { + 0 eq { + dup /Filter undef % don't confuse any filters that require data + } if } if dup /F known dup PDFsource PDFfile eq or { not { @@ -853,14 +855,15 @@ currentdict /no_debug_dict undef % Some (bad) PDf files have invalid stream lengths. This causes problems % if we reposition beyond the end of the file. So we compare the given % length to number of bytes left in the file. - dup /Length oget - dup PDFfile bytesavailable lt { % compare to to bytes left in file - PDFfile fileposition % reposition to the end of stream - add PDFfile exch setfileposition - } { - pop % bad stream length - do not reposition. + dup /Length knownoget { + dup PDFfile bytesavailable lt { % compare to to bytes left in file + PDFfile fileposition % reposition to the end of stream + add PDFfile exch setfileposition + } { + pop % bad stream length - do not reposition. % This will force a length warning below - } ifelse + } ifelse + } if } { pop % We're already reading from a stream, which we can't reposition. |