Extract text

I think that depends on codepages and fonts. QuickPdf is not able to work with all.

Ingo wrote: Hi! Perhaps the relevant pdf-files are only scanned? Scanner are scanning as images... and images are without text ;-) Best regards, Ingo

Hi Ingo.

No, the PDF file isn't scanned, I can extract text using Adobe Acrobat.

Can I put my PDF file here?

Ingo, please check your email account.

Hi,

I have the same problem. My testfile is a very simple one: I started a new OpenOffice (2.0) document, entered one word "Test" and exported it to pdf.
With this PDF nothing is extracted. I also have the same problems using pdf's generated by a TeX system.

greetings,
Ulrich

Hi Ulrich!

I've done the same with Word and the PDFCreator.
Extraction is possible:
First LoadFromFile
then SaveToFile //only to be sure that the file is readable with quickpdf
again LoadFromFile //the same saved file
then DAExtractPageText //with option 3!!!

Best regards,
Ingo

Hi Ingo,

thanks for your help but unfortunatly it doesn't work. It still cannot extract the word 'Test'. It only extracts the additional information:

"BAAAAA+TimesNewRomanPSMT",#000000,12.00,56.7000,776.6920,77.4240,776.6920,77.4240,784.7920,56.7000,784.7920,""

Also when I save the file and reload it bofore then it cannot extract anything (That's why I have set it in comments oin the code below).

here's the code I use (based on code of one of your former postings)

FName := 'c:\temp\test4.pdf';
QP := TiSEDQuickPDF.Create;
try
    QP.UnlockKey('');
    dafh := QP.DAOpenFile(FName, '');
    //QP.SaveToFile(FName);
    //dafh := QP.DAOpenFile(FName, '');
    x := QP.DAGetPageCount(dafh);
    STR := '';

    AssignFile(cf, FName + '_ex2.txt');
    Rewrite(cf);

    i1 := 1;
    pc := 0;

    for i := 1 to x do
    begin
      dapr := QP.DAFindPage(dafh, i);
      STR := QP.DAExtractPageText(dafh, dapr, 3);
      WriteLn(cf, Trim(STR));
      pc := pc + 1;
      if (pc = 100) then
      begin
        pc := 0;
        QP.DACloseFile(dafh);
        QP.Free;
        QP := TiSEDQuickPDF.Create;
        QP.UnlockKey('');
        dafh := QP.DAOpenFile(FName, '');
      end;
    end;
    QP.DACloseFile(dafh);
    CloseFile(cf);
finally
    QP.Free;
end;

Do you have any additional idea? As far as I have seen from looking on the code it seems that QuickPDF has problems this text, where the single letters are referenced objects (?)

I have emailed my test-PDF to you.

greetings,
Ulrich

ukobsa wrote: Hi Ingo, here's the code I use (based on code of one of your former postings) greetings, Ulrich

Hi Ulrich,
why did you write QP.Free two times?

Hi Quicker!

It's the code here in the thread.

Best regards,
Ingo

Hi There,

I'm having a few issues with GetPageText(4), the one that returns each word and its quads. Several of the "words" still contain spaces in them, or they repeat themselves constantly. This issue doesn't happen if I extract a single line with GetPageText(3).

Here is some example output:

By Line:
"EOFGEO+Palatino-Roman",#000000,12.29,119.3814,705.3093,492.3365,705.3093,492.3365,717.7753,119.3814,717.7753,"nature, and thereby - or so he thought - freedom. Later, Bentham"

By Word:
"EOFGEO+Palatino-Roman",#000000,12.29,119.3814,705.3093,157.6965,705.3093,157.6965,717.7753,119.3814,717.7753,"naturnature,"
"EOFGEO+Palatino-Roman",#000000,12.29,162.4776,705.3093,229.2728,705.3093,229.2728,717.7753,162.4776,717.7753,"and therthereby"
"EOFGEO+Palatino-Roman",#000000,12.29,234.0539,705.3093,240.1997,705.3093,240.1997,717.7753,234.0539,717.7753,"-"
"EOFGEO+Palatino-Roman",#000000,12.29,244.9807,705.3093,256.5469,705.3093,256.5469,717.7753,244.9807,717.7753,"or"
"EOFGEO+Palatino-Roman",#000000,12.29,261.3279,705.3093,273.2506,705.3093,273.2506,717.7753,261.3279,717.7753,"so"
"EOFGEO+Palatino-Roman",#000000,12.29,278.0317,705.3093,291.0730,705.3093,291.0730,717.7753,278.0317,717.7753,"he"
"EOFGEO+Palatino-Roman",#000000,12.29,295.8541,705.3093,339.1324,705.3093,339.1324,717.7753,295.8541,717.7753,"thought"
"EOFGEO+Palatino-Roman",#000000,12.29,343.9135,705.3093,492.3365,705.3093,492.3365,717.7753,343.9135,717.7753,"- frfreedom. LaterLater, Bentham"

Is this a known issue? I'm tempted to do string processing and compare the two outputs but would prefer not to. Any guidance appreciated.