XML Editor
Sign up for a WebBoard account Sign Up Keyword Search Search More Options... Options
search
Chat Rooms Chat Help Help News News Log in to WebBoard Log in Not Logged in
Home » Boards » Stylus Studio Developer Network » XQuery Help and Discussion » Problem base64 decoding string - base64 string cannot be converted to pdf file
Conferences Close Tree View
+ Stylus Studio Feature Requests (1192)
+ Stylus Studio Technical Forum (14621)
+ Website Feedback (249)
+ XSLT Help and Discussion (7625)
- XQuery Help and Discussion (2017)
-> + Issue with Processing Instruct... (2)
-> + problem converting json to XML... (2)
-> - Problem base64 decoding string... (3)
-> ->Problem base64 decoding s...
-> ->Problem base64 decoding s...
-> + Problems posting multipart for... (5)
-> + trouble with download of price... (2)
-> + Problem with http-post not bei... (3)
-> + path problem, xps_file:writeAl... (9)
-> + Xquery update support? (2)
-> + problem with Stylus studio try... (5)
-> + adding dtd reference to xml ou... (4)
-> + xquery escaping ambarsand when... (3)
-> + Whitespace problem when return... (5)
-> + Problem with namespace prefix ... (5)
-> - Sending via SFTP returns unexp... (1)
-> + Query and Sftp clent (4)
-> + xquery and try - catch (3)
-> + Query + ddtek:http-post optio... (5)
-> + Example files referenced in do... (3)
-> + Automatic Error Detection and ... (3)
-> + Working with result of ddtek:h... (2)
-- [1-20] [21-40] [41-60] Next
+ Stylus Studio FAQs (159)
+ Stylus Studio Code Samples & Utilities (364)
+ Stylus Studio Announcements (113)
Topic  
Postnext
Bruce CantorSubject: Problem base64 decoding string - base64 string cannot be converted to pdf file
Author: Bruce Cantor
Date: 26 Oct 2023 09:48 AM
Originally Posted: 26 Oct 2023 08:43 AM
Hi,

I am having this problem with a base64 encoded string:
When I decode it and save it to disk the resulting pdf file can be opened but all text and images are gone.

My code is like this:

let $pdfFileEncoded := "encodedstring"

let $pdfFileDecoded := ddtek:base64-to-string(xs:base64Binary($pdfFileEncoded), "utf-8")
let $pdfDocRes := if( xps_file:writeAll($pdfOutput_URI,$pdfFileDecoded) ) then $pdfOutput_URI else "error"

I tried to change 'utf-8' to 'iso-8859-1', but that does not make the result better.

Can anybody tell me why I get an incomplete pdf? I can be opened, but it is not good looking.

Attached my encoded string.

PS: The string can be decoded with other tools with a more successfully result. (https://base64.guru/converter/decode/pdf)


UnknownencodedString.txt
Encoded string
Postnext
Ivan PedruzziSubject: Problem base64 decoding string - base64 string cannot be converted to pdf file
Author: Ivan Pedruzzi
Date: 26 Oct 2023 02:38 PM
Bruce

if you have a base64 string and you want to decoded into binary
You simply do this:

let $pdfFileEncoded := "......"

let $output_url := fn:resolve-uri("mypdf.pdf", fn:static-base-uri())

return ddtek:serialize-to-url(<root>{$pdfFileEncoded}</root>, $output_url, "method=base64")

you code does the opposite, from binary to base64.

Ivan Pedruzzi
Stylus Studio Team
Posttop
Bruce CantorSubject: Problem base64 decoding string - base64 string cannot be converted to pdf file
Author: Bruce Cantor
Date: 30 Oct 2023 09:09 AM
Thank you, I see it now.

   
Download A Free Trial of Stylus Studio 6 XML Professional Edition Today! Powered by Stylus Studio, the world's leading XML IDE for XML, XSLT, XQuery, XML Schema, DTD, XPath, WSDL, XHTML, SQL/XML, and XML Mapping!  
go

Log In Options

Site Map | Privacy Policy | Terms of Use | Trademarks
Stylus Scoop XML Newsletter:
W3C Member
Stylus Studio® and DataDirect XQuery ™are from DataDirect Technologies, is a registered trademark of Progress Software Corporation, in the U.S. and other countries. © 2004-2016 All Rights Reserved.