After transforming a PDF file, I can not copy the text from it anymore.
All I get are unreadable characters which make no sense whatsoever.
qpdf (by Jay Berkenbilt) to evaluate the file.
pdfid.py and pdf-parser. py (by Didier Stevens) to evaluate more.
PDFlib’s TET (text extraction tool) to extract and try text.
PDFlib’s Font style Reporter Acrobat plugin to generate a table with glyphs utilized by the PDF.
Poppler’s pdffonts command line energy.
This is what I did to get iframe scrolling to work on iPad. Note that this solution only works if you manage the html that is shown inside the iframe.
Some internet browsers will constantly open that file inside an external application (or in another internet browser window). Best and most suitable way I found is a little bit tricky but works on all browsers I attempted (even pretty out-of-date):.
Keep your <iframe> however do not display a PDF inside it, it’ll be filled with an HTML page that includes an <object> tag. Develop an HTML covering page for your PDF,.
In some cases the rendering on mobile makes some elements being “selectables” and does not apply scrol when you touch it.
You can attempt force scroll by setting overflow to it with css, if it does not work, you can attempt including an overlay producing a div with transparent background, full width and height.
If it is truly supporting this standard with the Preflight tool, I also inspected. Then I showed the PDF/A on my UIWebView and the text got shown and I didn’t get an error in the console.
Then I got it managed to get access to the troublesome PDF and I also inspected it with the Preflight tool. The summary for PDF/A -1 a and PDF/A -1 b was:.
Submit header is not compatible with PDF/A.
Syntax issue: PDF file consists of information after end of file.
It doesn’t satisfy any of the standards offered in the Preflight tool. Yes iOS does support PDF/A, however you have to check if your PDF is legitimate.
PDF/A, or PDF for Archival is an ISO standard that is based upon the ISO requirement for PDF itself (ISO 32.000). As a repercussion, any software that supports “PDF” must likewise always support PDF/A. Or otherwise stated, all PDF/A files are PDF files, but not all PDF files are PDF/A files.
To complicate matters though … there are lots of various versions of PDF out there, and there are at least 8 different forms (flavours and parts together) of PDF/A. Not all software application supports all variations of PDF, more advanced features (such as JPEG-2000 compression to name but one example) may not be supported by your specific platform or software application of option.
So you have two actions to go through:.
1) Ensure your PDF/A stands – there is industrial software to do this such as Adobe Acrobat or callas pdfToolbox or pdfaPilot (caution: I’m connected with these applications) and there is complimentary software application to do this (have an appearance here: http://www.pdf-tools.com/pdf/validate-pdfa-online.aspx for example).
2) If your PDF/A stands, make sure that your software application/ platform supports the features in that specific PDF/A file you are taking a look at. PDF/A -1 for example is an older standard than PDF/A -3 and supports less features. You’ll have a greater possibility that a PDF/A -1 file is supported than a PDF/A -3 file.