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If you don't find any solutions, you could try an OCR that gives x/y positions of words like 'cuneiform -l eng -f hocr' and then look for holes with no words.</div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>From:</b> poppler <poppler-bounces@lists.freedesktop.org> on behalf of Albretch Mueller <lbrtchx@gmail.com><br>
<b>Sent:</b> Tuesday, September 3, 2019 11:36 AM<br>
<b>To:</b> poppler@lists.freedesktop.org <poppler@lists.freedesktop.org><br>
<b>Subject:</b> [poppler] (preferably Linux-based, OS) utility to extract images from image-based pdf files ...</font>
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<div class="PlainText">The output of pdfimages would be a whole page image if the input is a<br>
non-searchable, image-based pdf files. Take for example:<br>
<br>
<a href="https://www.nysedregents.org/ushistorygov/Archive/20000126exam.pdf">https://www.nysedregents.org/ushistorygov/Archive/20000126exam.pdf</a><br>
<br>
which utility would detect the cartoons on page 6 and 7?<br>
<br>
lbrtchx<br>
poppler@lists.freedesktop.org:(preferably Linux-based, OS) utility to<br>
extract images from image-based pdf files ...<br>
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<a href="https://lists.freedesktop.org/mailman/listinfo/poppler">https://lists.freedesktop.org/mailman/listinfo/poppler</a></div>
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