Thank you misters, Drawing static barcodes is very easy, but I really like the dynamic barcoded forms. I've downloaded some examples which is written in java, and it says that it uses XML. I've heard that ConTeXt can use XML but when I've finished reading the example.pdf (it is talking about XML in ConTeXt, right?), I totally have no idea about it. I love ConTeXt so much that I wish it can do everything. By the way, I have another question: how can we make reader-extension pdfs? I mean we can save, add anotations, etc., using Adobe Reader 7 or above. It is another cool function. On 10/11/06, Martin Schröder wrote:

2006/10/10, Henning Hraban Ramm :

...

I can think of 3 possibilities for a static barcodes module: - draw the bars with MetaPost - use psTricks/pdfTricks - call GNU barcode externally - use barcode fonts (makes no sense...) That would be interesting for price tags, ISBN or the like.

GNU barcode works reasonably well. You have to trim the produced ps a bit, but that's easy.

Best Martin _______________________________________________ ntg-context mailing list ntg-context@ntg.nl http://www.ntg.nl/mailman/listinfo/ntg-context

-- Sincerely yours, Chen ---------------------------------------------------------------- Zhi-chu Chen | Shanghai Synchrotron Radiation Facility No. 2019 | Jialuo Rd. | Jiading | Shanghai | P.R. China tel: 086 21 5955 3405 | zhichu.chen.googlepages.com | www.sinap.ac.cn ----------------------------------------------------------------

� wrote:

2006/10/11, Zhichu Chen :

...

By the way, I have another question: how can we make reader-extension pdfs? I mean we can save, add anotations, etc., using Adobe Reader 7 or above. It is another cool function.

That is protected by DRM from Adobe; you need software from Adobe for this.

indeed, but what one can do is submit the form to a url and get back an updated document, which is permitted (kind of roundtrip system) this only works if one runs inside a browser; technically this server can run on the local machine so you can have a local roundtrip Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | fax: 038 477 53 74 | www.pragma-ade.com | www.pragma-pod.nl -----------------------------------------------------------------