Re: [iText-questions] Handling PDF/A Checkboxes with a single appearance
Thomas Büngener schreef op 21/02/2014 13:26: Hello, I have checkboxes that have only one appearance state. I.e. AP-N not being a dictionary but a stream containing only BBox. As I understand this construktion seems Ok, as in PDF/A AP-N must not be a dictionary and the „Off“ state can be left away (this is because PDF/A does not allow multiple appearance states). acroFields.getAppearanceStates returns an empty Array in this case. This is normal for the reason you mention above: AP-N is not a dictionary. The AS (Appearance state) is „Off“ as long as the Chekbox is unticked. When I tick it in Acrobat and save the file, the AS is set to „Ja“. Well, in my case it's Yes. If i use AcroFileds.setField this does not work because the metod isInAP which is used inside setField returns false. Indeed. You are giving the exact reasn why it doesn't work. Now I tried to set the AS value directly to „Ja“ and this works! Correct. The Value „Ja“ is show as „export value“ for this field in Acrobat Pro and, as stated before, Acrobat writes „Ja“ to AS when I tick the box and save the file. Now my remaining problem ist he following: I have no idea where Acrobat takes this ticked-value („Ja“) from. Convention. As I already explained: in my case Acrobat puts Yes instead of Ja. If you change the language settings, you can get another result. I cannot find it anywhere inside the file, nor am I able to retrieve it programatically. That's because it's not in the file ;-) The value „Off“ seems to be fixed (according to Standards), but the value „Ja“ is not. The value Off is defined in ISO-32000-1; see section 12.7.4.2.3: The appearance for the off state is optional but, if present, shall be stored in the appearance dictionary under the name Off. Yes should be used as the name for the on state. When you read shall in an ISO document, the text is normative: no other value is allowed or your document is invalid. When you read should in an ISO document, the text is a rule, but if you don't follow the rule, your document isn't invalid. Does anybody know, how this „Ja“ value can be found inside the pdf? No, you should assume it isn't Ja, but Yes. If something else is used, it's a choice made by the software (in this case your German version of Acrobat). -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
Re: [iText-questions] Handling PDF/A Checkboxes with a single appearance
Correct. And since your PDF doesn't have a pre-defined alternative for Off (which is the current value specified), Acrobat (or iText or any other client) is free to pick whatever On value it wants (as noted by Bruno below). If you want a specific one, put it in the PDF when you create it. Leonard On 2/24/14 11:13 AM, iText Info i...@1t3xt.info wrote: Thomas Büngener schreef op 21/02/2014 13:26: Hello, I have checkboxes that have only one appearance state. I.e. AP-N not being a dictionary but a stream containing only BBox. As I understand this construktion seems Ok, as in PDF/A AP-N must not be a dictionary and the „Off“ state can be left away (this is because PDF/A does not allow multiple appearance states). acroFields.getAppearanceStates returns an empty Array in this case. This is normal for the reason you mention above: AP-N is not a dictionary. The AS (Appearance state) is „Off“ as long as the Chekbox is unticked. When I tick it in Acrobat and save the file, the AS is set to „Ja“. Well, in my case it's Yes. If i use AcroFileds.setField this does not work because the metod isInAP which is used inside setField returns false. Indeed. You are giving the exact reasn why it doesn't work. Now I tried to set the AS value directly to „Ja“ and this works! Correct. The Value „Ja“ is show as „export value“ for this field in Acrobat Pro and, as stated before, Acrobat writes „Ja“ to AS when I tick the box and save the file. Now my remaining problem ist he following: I have no idea where Acrobat takes this ticked-value („Ja“) from. Convention. As I already explained: in my case Acrobat puts Yes instead of Ja. If you change the language settings, you can get another result. I cannot find it anywhere inside the file, nor am I able to retrieve it programatically. That's because it's not in the file ;-) The value „Off“ seems to be fixed (according to Standards), but the value „Ja“ is not. The value Off is defined in ISO-32000-1; see section 12.7.4.2.3: The appearance for the off state is optional but, if present, shall be stored in the appearance dictionary under the name Off. Yes should be used as the name for the on state. When you read shall in an ISO document, the text is normative: no other value is allowed or your document is invalid. When you read should in an ISO document, the text is a rule, but if you don't follow the rule, your document isn't invalid. Does anybody know, how this „Ja“ value can be found inside the pdf? No, you should assume it isn't Ja, but Yes. If something else is used, it's a choice made by the software (in this case your German version of Acrobat). -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clkt rk ___ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php -- Flow-based real-time traffic analytics software. Cisco certified tool. Monitor traffic, SLAs, QoS, Medianet, WAAS etc. with NetFlow Analyzer Customize your own dashboards, set traffic alerts and generate reports. Network behavioral analysis security monitoring. All-in-one tool. http://pubads.g.doubleclick.net/gampad/clk?id=126839071iu=/4140/ostg.clktrk ___ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
Re: [iText-questions] Handling PDF/A Checkboxes with a single appearance
What version of PDF/A are you referring to since the rules for annotation appearances changed between PDF/A-1 and PDF/A-2 (and –3)? I would assume that Ja in the export values. Leonard From: Thomas Büngener thomas.buenge...@is2.demailto:thomas.buenge...@is2.de Reply-To: Post here itext-questions@lists.sourceforge.netmailto:itext-questions@lists.sourceforge.net Date: Friday, February 21, 2014 7:26 AM To: Post here itext-questions@lists.sourceforge.netmailto:itext-questions@lists.sourceforge.net Subject: [iText-questions] Handling PDF/A Checkboxes with a single appearance Hello, I have checkboxes that have only one appearance state. I.e. AP-N not being a dictionary but a stream containing only BBox. As I understand this construktion seems Ok, as in PDF/A AP-N must not be a dictionary and the „Off“ state can be left away (this is because PDF/A does not allow multiple appearance states). acroFields.getAppearanceStates returns an empty Array in this case. The AS (Appearance state) is „Off“ as long as the Chekbox is unticked. When I tick it in Acrobat and save the file, the AS is set to „Ja“. If i use AcroFileds.setField this does not work because the metod isInAP which is used inside setField returns false. Now I tried to set the AS value directly to „Ja“ and this works! The Value „Ja“ is show as „export value“ for this field in Acrobat Pro and, as stated before, Acrobat writes „Ja“ to AS when I tick the box and save the file. Now my remaining problem ist he following: I have no idea where Acrobat takes this ticked-value („Ja“) from. I cannot find it anywhere inside the file, nor am I able to retrieve it programatically. The value „Off“ seems to be fixed (according to Standards), but the value „Ja“ is not. Does anybody know, how this „Ja“ value can be found inside the pdf? I‘m using iText 2.1.7 right now, but I also tried using latest v5 to solve the problem. I am not the producer oft he PDF so i cannot modify it in any way and the PDF/A conformance must be retained. So I cannot change the appearance(s) oft he checkbox. I can provide a reduced version of the problematic file (35kb) if that might be helpful. sincerly Thomas -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471iu=/4140/ostg.clktrk___ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
Re: [iText-questions] Handling PDF/A Checkboxes with a single appearance
Thomas Büngener schreef op 21/02/2014 13:26: I can provide a reduced version of the problematic file (35kb) if that might be helpful. Yes, that would help, otherwise we're working in the void. Looking at the PDF using iText RUPS can help us analyze the problem. -- Managing the Performance of Cloud-Based Applications Take advantage of what the Cloud has to offer - Avoid Common Pitfalls. Read the Whitepaper. http://pubads.g.doubleclick.net/gampad/clk?id=121054471iu=/4140/ostg.clktrk ___ iText-questions mailing list iText-questions@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/itext-questions iText(R) is a registered trademark of 1T3XT BVBA. Many questions posted to this list can (and will) be answered with a reference to the iText book: http://www.itextpdf.com/book/ Please check the keywords list before you ask for examples: http://itextpdf.com/themes/keywords.php
