<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">Hello guys,<div class=""><br class=""></div><div class="">I am new to Poppler, I am developing a tool to support converting pdf to jpeg files online in China. But I meet a strange error and I can not resolve it through searching google. The below lists some details:</div><div class=""><br class=""></div><div class="">————————</div><div class=""><div class=""><font color="#e32400" class=""><b class="">$ pdftoppm -v</b></font></div><div class="">pdftoppm version 0.37.0</div><div class="">Copyright 2005-2015 The Poppler Developers - <a href="http://poppler.freedesktop.org" class="">http://poppler.freedesktop.org</a></div><div class="">Copyright 1996-2011 Glyph & Cog, LLC</div></div><div class="">————————</div><div class=""><div class=""><b class=""><font color="#e32400" class="">$ pdftoppm -png ~/Desktop/test.pdf tmp</font></b></div><div class="">Syntax Error: Unknown character collection 'DYNA-HK1’</div></div><div class="">————————</div><div class=""><br class=""></div><div class="">the `test.pdf` is exported from Mac OS’ Keynote.app and contains some Chinese characters. If I try to export a pdf which doesn’t contain any Chinese characters, it will work. Additionally, I also tried to use pdftotext to print text in `test.pdf`, it can print text normally.</div><div class=""><br class=""></div><div class="">You can also download the test pdf from here: <a href="http://7xj84e.com1.z0.glb.clouddn.com/test.pdf" class="">http://7xj84e.com1.z0.glb.clouddn.com/test.pdf</a> .</div><div class=""><br class=""></div><div class="">Hope someone can help to resolve this problem and thanks very much in advance!</div><div class=""><br class=""></div><div class="">Best Regards,</div><div class="">Martin</div></body></html>