Hello Ulf, a typical default appearance string looks like this
/Helv 12 Tf 0 g There are two operators Tf, to set the font, and g to set the color with the arguments for the operators being supplied before. Helv 12 being the arguments for Tf and 0 being the argument for g Your form has / 13 0 g So 13 0 are being treated as arguments for the g operator. But there are no colors with 2 arguments. It's either 1 (Greyscale) , 3 (RGB) or 4 (CMYK) arguments. So IMHO the default apperace string is wrong. It's also very unusual that it doesn't set a font. Workaround would be to set the default apperance string similar to the first sample above. BR Maruan Am Dienstag, dem 03.06.2025 um 21:36 +0200 schrieb sahy...@fileaffairs.de: > Hello > > > Am Dienstag, dem 03.06.2025 um 17:47 +0200 schrieb Ulf Dittmer: > > Hello- > > > > When trying to fill in values into a form, I'm encountering the > > error > > shown > > below, which means nothing to me. It's not just for the first field > > it > > encounters - if I comment that out, it happens for the next field. > > > > The form (an official government PDF) doesn't seem different from > > any > > number of other ones we are successfully filling out; it can be > > found > > at > > https://ulfdittmer.com/pdfbox/Guide_BW.pdf > > is that the original form or after setting the font? > > BR > Maruan > > > > > The source code is also similar to other codes we use for other > > forms: > > https://ulfdittmer.com/pdfbox/StreamQRApplForm.java > > > > It uses the following font, which is also standard > > https://ulfdittmer.com/pdfbox/Arial.ttf > > > > Are we doing something wrong? Is the PDF weird? Is there a way > > around > > this > > issue? > > > > Many thanks in advance for any help you can supply. > > > > Ulf > > > > Jun 03, 2025 5:21:00 PM org.apache.pdfbox.pdfparser.BaseParser > > parseCOSDictionaryNameValuePair > > WARNING: Empty COSName at offset 940 > > Exception in thread "main" java.io.IOException: Could not process > > default > > appearance string ' 13 0 g' for field 'Name ggf Geburtsname': > > Missing > > operands for set non stroking color operator [COSInt{13}, > > COSInt{0}] > > at > > org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelpe > > r. > > <init>(AppearanceGeneratorHelper.java:123) > > at > > org.apache.pdfbox.pdmodel.interactive.form.PDTextField.constructApp > > ea > > rances(PDTextField.java:261) > > at > > org.apache.pdfbox.pdmodel.interactive.form.PDTerminalField.applyCha > > ng > > e(PDTerminalField.java:209) > > at > > org.apache.pdfbox.pdmodel.interactive.form.PDTextField.setValue(PDT > > ex > > tField.java:218) > > at StreamQRApplForm.setField(StreamQRApplForm.java:67) > > at StreamQRApplForm.main(StreamQRApplForm.java:28) > > Caused by: java.io.IOException: Missing operands for set non > > stroking > > color > > operator [COSInt{13}, COSInt{0}] > > at > > org.apache.pdfbox.pdmodel.interactive.form.PDDefaultAppearanceStrin > > g. > > processSetFontColor(PDDefaultAppearanceString.java:202) > > at > > org.apache.pdfbox.pdmodel.interactive.form.PDDefaultAppearanceStrin > > g. > > processOperator(PDDefaultAppearanceString.java:133) > > at > > org.apache.pdfbox.pdmodel.interactive.form.PDDefaultAppearanceStrin > > g. > > processAppearanceStringOperators(PDDefaultAppearanceString.java:105 > > ) > > at > > org.apache.pdfbox.pdmodel.interactive.form.PDDefaultAppearanceStrin > > g. > > <init>(PDDefaultAppearanceString.java:87) > > at > > org.apache.pdfbox.pdmodel.interactive.form.PDVariableText.getDefaul > > tA > > ppearanceString(PDVariableText.java:105) > > at > > org.apache.pdfbox.pdmodel.interactive.form.AppearanceGeneratorHelpe > > r. > > <init>(AppearanceGeneratorHelper.java:117) > > ... 5 more > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org > For additional commands, e-mail: users-h...@pdfbox.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@pdfbox.apache.org For additional commands, e-mail: users-h...@pdfbox.apache.org
