7.61. ghostscript

Bug Fixes

BZ#994452

Previously, a text intended for rendering in mode 3 (invisible) was not included in the PDF output of the pdfwrite device. As a consequence, text selection from documents with an invisible text, such as Optical character recognition (OCR) output, failed. With this update, mode 3 text is included in the PDF output, and copying a text from such PDF files now works as expected.

BZ#1027534

Prior to this update, some PDF files containing embedded objects were erroneously treated as portable collections, leading to a "/syntaxerror" error when processing these files. A fix has been applied so that only PDF files with "/Collection" attributes are treated as portable collections, and files with embedded objects are now processed correctly.

BZ#1060026

Correct PDF/A files could not be created due to a lack of support. This update backports improved support for creating PDF/A files from upstream, and correct PDF/A files can now be produced.

BZ#1105520

Previously, if an error occurred in the ghostscript interpreter in between allocating an array and initializing its contents, garbage collection could cause the interpreter to terminate unexpectedly while attempting to deallocate memory. A patch from upstream which immediately sets the array elements to null objects after allocation fixes this bug, and the ghostscript interpreter no longer crashes in the described scenario.