[ https://issues.apache.org/jira/browse/PDFBOX-2158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14045582#comment-14045582 ]
John Hewson commented on PDFBOX-2158: ------------------------------------- Tilman, shouldn't r1605545 have been a one-line fix? {code} if (pdImage.isStencil() && (decode.length != 2 || {code} Could be changed to: {code} if (pdImage.isStencil() && (decode.length < 2 || {code} > ExtractText missing most of text in this PDF file, due to font bounding box > with minus infinity > ----------------------------------------------------------------------------------------------- > > Key: PDFBOX-2158 > URL: https://issues.apache.org/jira/browse/PDFBOX-2158 > Project: PDFBox > Issue Type: Bug > Components: Text extraction > Affects Versions: 1.8.5 > Environment: Windows x64 > Reporter: Joel Hirsh > Attachments: negative.text.box.pdf > > > Attached PDF file is missing most of the text when processed by the > ExtractText example program > I traced it down to PDFontDescriptorDictionary.getFontBoundingBox() getting a > rectange for COSName.FONT_BBOX that contained a ymin value of minus > infinity. That method then creates a PDRectangle which calculates a bounding > box with a ymin value of -65,329, and results in an enormous text size, and > things go downhill from there. The text cannot be matched up, and most of it > ends up being discarded. > I was able to hack a fix by doing a check in the constructor > PDRectangle.PDRectangle( COSArray array ) for big negative numbers and > setting them to 0. With that change, all the text came through as expected. > However, I don't have enough familiarity with the code to understand what a > real fix ought to look like. > The PDF file looks to be fine by other programs such as Acrobat and NitroPDF -- This message was sent by Atlassian JIRA (v6.2#6252)