Yvonne Tunnat, Author at Open Preservation Foundation

Convert me if you can – Preservation Planning with malicious PDFs

April 15 , 2020

Do we fear that not understanding the PDF error messages today might put the readability of our archived PDFs at jeopardy tomorrow? Preservation Planning is…

Sherlock Carriage – PRONOM’s blind spot on (some) PDFs from 2010 to 2014

July 25 , 2018

General thoughts on file format identification File format identification is a big and complex topic. And somehow emotional. Whenever and wherever I speak about File…

JHOVE – the one and only PDF validator

December 19 , 2017

Motivation When it comes to PDF validation, the world is suddenly very small. Although many digital archives have to deal with PDF (rather than PDF/A,…

Good GIF hunting: JHOVE’s GIF validation skills

December 5 , 2017

Motivation As most of us rely on JHOVE for file format validation, it is important to gain information about the quality of JHOVE’s validation skills…

TIFF format validation: easy-peasy?

January 17 , 2017

The research question I have never doubted the JHOVE TIFF module. The JHOVE TIFF module is always right. Everybody says so. That's why nobody…

Error detection of JPEG files with JHOVE and Bad Peggy – so who’s the real Sherlock Holmes here?

November 29 , 2016

In this Blogpost I want to examine the findings of two validation tools, JHOVE (Version 1.14.6) and Bad Peggy (version 2.0), which scans image files…

Read more from the author

Convert me if you can – Preservation Planning with malicious PDFs

Sherlock Carriage – PRONOM’s blind spot on (some) PDFs from 2010 to 2014

JHOVE – the one and only PDF validator

Good GIF hunting: JHOVE’s GIF validation skills

TIFF format validation: easy-peasy?

Error detection of JPEG files with JHOVE and Bad Peggy – so who’s the real Sherlock Holmes here?

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