Mustangserver offers the possibility to convert from ordinary PDF to PDF/A using it’s “Mustangserver-docs” component.
Some users experienced timeouts if the PDFs to be converted exceeded several dozend pages.
We have now completely overhauled this component.
Version 2.0 of “Mustangserver-docs”
- decouples the request from the retrieval using a so-called message queue, thus avoiding virtually any timeouts and
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utilizes a network file storage (so called S3 buckets) as source and target for the conversion.
This allows full autonomy by e.g. allowing the user to alternatively specify her own S3 instance. -
allows to book the PDF functionality, i.e. “Mustangserver-docs” autonomously. Previously “Mustangserver-docs” had to be procured additional to Mustangserver. Mustangserver provides additional e-invoiving capabilities like
reading, writing, validating or converting e-invoices (also from XML to PDF/A).
As of today, October 14th, 2025, you can sign up for a evalution period by just checking the “PDF” option in the signup form.
What is Mustangserver?
Mustangserver provides functionality to read, write, convert and validate
electronic invoices like Factur-X/ZUGFeRD, XRechnung, or EN16931 files.
It is published by the authors of Mustangproject and Quba-Viewer and can be run as SAAS, in the cloud, or, using the Mustangservers inhouse option, also completely “off grid”.
What is PDF/A?
PDF/A makes PDF files archivable. PDF/A files can be read using any viewer, are self-contained,and required for many electronic invoices.
In Germany, as of 2028 paper invoices and ordinary PDF files will be forbidden for use in domestic B2B invoices in favor of XML and the PDF/A based Factur-X format.
What is Ghostscript?
Ghostscript is a multipurpose PDF tool and interpreter for the PostScript and Portable Document Format (PDF) page description languages.
Initiated in 1988, it is the only open source PDF converter which can print vectors “virtually”, being able to
reassemble them in a valid PDF/A-file, which has been build from scratch.
This process is so reliable and secure that it is
- used as printer driver e.g. on Linux systems and
- used in Software to make potential malicious PDFs much safer
What is S3?
Simple Storage Service (S3) is a open standard filehosting service specification, specifying how global files access can be addressed, authenticated and authorized, read, listed and written to, protocolled, versioned, encrypted,
lifecycled, proxied, and/or replicated.
S3 storage can be procured online for as little as 60 euro cent for 1GB over 10 years.
A number of open-source server (and client) implementations allow to run S3 also on own hardware, even on a local installation.