This is a corrupt PDF file, but I doubt that the syntax problems are causing the problems with your fax service:
If you have access to Adobe Acrobat Pro, you can run the "Report PDF syntax issues" preflight profile to get a list of syntax problems. There are two types of problems in your file: One is related to the tags structure, and you can test if that is causing any problems by just removing the tags tree. The second type of problem is related to the /Tabs entry in the page dictionary. This optional key can have the following values associated with it (from the PDF spec): *"(Optional; PDF 1.5) A name specifying the tab order that shall be used for annotations on the page. The possible values shall be R (row order), C (column order), and S (structure order). See 12.5, "Annotations" for details."* The document does however use a "W". You can change this by processing your document with the pdfbox-app, using the "WriteDecodedDoc" command to uncompress it, and then change the /W instances to e.g. /R or /C (this will change the way you tab through the document when filling out the form in Acrobat or Reader). Keep in mind that when editing a PDF file, you need to use a binary editor, and you have to make sure that the cross reference table is still valid after your changes. Karl Heinz Kremer PDF Acrobatics Without a Net PDF Software Development, Training and More... [email protected] http://www.khkonsulting.com On Fri, Mar 3, 2017 at 8:31 AM, Evan Williams <[email protected]> wrote: > I work with forms that come from drug manufacturers and pharmacies. Using > PDFBox (2.0.4), I fill them out and then display them in the browser or fax > them. > > This has been working perfectly (thank you PDFBox team!), but I have a > mystery PDF which is causing trouble. > > The first sign of trouble is, various PDF renderers in browsers were > displaying fields that had been filled in as blank (intermittently). > Chrome's PDF viewer was one such culprit. Need Appearances was set to true > with this form, so I set it to False and refreshed the appearances, which > may or may not have fixed it (if it doesn't I will do a full flatten on > it). > > More seriously, the faxing service that we use chokes on this form. They > are unable to render it even if I don't fill it out and send them the > original PDF. They are investigating this on their end, but since this is > the only PDF that has ever had this issue and because of its previous > suspicious behavior, I believe that it might be corrupt in some subtle way > that I don't understand. PDFBox seems to have no trouble working with it, > and it is viewable and printable in Acrobat and in third party viewers. But > I am uncertain. > > I would very much appreciate any tips you can give me on examining this PDF > and debugging the issue. > > The file is here: > https://dl.dropboxusercontent.com/u/25802656/Tyvaso-Revised.pdf > > The PDFBox community is awesome, and I am very grateful for your time. > Thank you > -- > *Evan Williams* > Sr. Software Engineer > [email protected] > > *www.ZappRx.com <http://www.zapprx.com/>* >
