As I said I know nothing about the PDF file format. So, this workaround will have to do. Now I have to make this button submit the form.
I have a system where PDF designers make PDF templates. Some users fill copies of those template and submit. My program processes those submited PDF files and input the data into a database. This all works ok. But now I want some users to fill and send form data directly from Acrobat Reader without having to submit entire PDFs. To do this I need to pre-process each PDF template with PDFBox and insert a PushButton that submits form data to my site. So, I think your workaround will be good enough because it is just to create a temporary PDF for form submission. Is this feasible? I think now I just need to turn my Push Button into a Submit Button. I think I have to create a javascript on the PDF and associate with the button, am I right? Clóvis 2016-01-20 16:10 GMT-02:00 Tilman Hausherr <[email protected]>: > Am 20.01.2016 um 18:43 schrieb clovis: > >> Thanks, it is working. Now I can see the button. >> I need to understand this. I am a developer (java, c, .net, etc.) but I >> do not know PDF format and I am new to PDFBox (used iText long ago). >> >> >> The Javadocs states: >> >> public void setNeedAppearances(Boolean >> < >> http://download.oracle.com/javase/1.6.0/docs/api/java/lang/Boolean.html?is-external=true> >> value) >> >> Set the NeedAppearances value. *If this is false, *PDFBox will >> create appearances for all field widget. >> >> > Not only the creation of appearance streams isn't supported, the javadoc > is wrong too :-( > > >> The javadoc does not say what happens if you set to TRUE. >> You set to TRUE and the widget is visible, then I don't understand what >> "appearances" is (and I think I don't understand differences between >> appearances and widgets). >> Also, the text field was already visibel (with border and background >> colors). >> > > The PDF spec tells this: "A flag specifying whether to construct > appearance streams and appearance dictionaries for all widget annotations > in the document". So it is set to tell Adobe to do it. > > Of course this is really just a workaround. The real solution is to > construct the appearance stream yourself. > > Tilman > > > >> Thanks again. >> >> Clóvis >> >> >> 2016-01-20 14:12 GMT-02:00 Tilman Hausherr <[email protected] >> <mailto:[email protected]>>: >> >> >> I can see the button by adding this line: >> >> acroForm.setNeedAppearances(true); >> >> alternatively, set the appearance stream yourself. This is similar >> to the code to which I posted the link earlier today ( >> http://justpaste.it/CreateRadioButtons ). The stream is also to be >> in AP/N, here are the contents that Adobe sets after saving the file: >> >> 0 0 1 rg >> 0 0 100 20 re >> f >> 0 0 1 RG >> 0.5 0.5 99 19 re >> s >> q >> 1 1 98 18 re >> W >> n >> 0 g >> 0 G >> BT >> /Helv 12.81 Tf >> 0 g >> 36.128 5.686 Td >> (teste) Tj >> ET >> Q >> >> >> >> >> >
