Thank you very much, Tilman.
Please, ignore my sentence about the empty file: I had an (unrelated) exception 
is another point of my code. Sorry.

The font removal works (the code is at the end of this mail).

Now the viewer issues an error like:
Cannot find or create the font 'AAAEOG+ArialMT'.
And obviously the file isn't correctly displayed.

With iText I obtain /Encoding entries referring to /BaseFont /Helvetica, also 
for the special characters outside the WinAnsi range, and the viewer correctly 
opens the file.
I wonder if it's possible to manipulate the file with PDFBox, so that it refers 
to Helvetica as well.

Thank you in advance,
Fabio


---

    private void clearAllFontDescriptors() throws IOException
    {
        for(PDPage page : document.getPages())
        {
            PDResources pageResources = page.getResources();
            for(COSName fontName : pageResources.getFontNames())
            {
                clearFontDescriptor(pageResources.getFont(fontName));
            }
        }
    }

    public void clearFontDescriptor(PDFont pdFont)
    {
        PDFontDescriptor fontDescriptor = pdFont.getFontDescriptor();
        COSDictionary cosObj = fontDescriptor.getCOSObject();
        Set<COSName> fontNameSet = new HashSet<>();
        for(COSName name : cosObj.keySet())
        {
            if(name.getName().startsWith("FontFile"))
            {
                fontNameSet.add(name);
            }
        }

        for(COSName name : fontNameSet)
        {
            cosObj.removeItem(name);
        }
    }


Fabio Vassallo
Product Development (CIS)


Würth Phoenix S.r.l.
via Kravogl 4, 39100 Bolzano
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-----Original Message-----
From: Tilman Hausherr [mailto:thaush...@t-online.de] 
Sent: Friday, April 14, 2017 9:52 AM
To: users@pdfbox.apache.org
Subject: Re: Embedded vs. non-embedded fonts (PDFBox & iText)

Your code looks good.

Does "clearAllFontDescriptors" have access to your current document object?

Does "the resulting file is empty" mean that the file is empty, or that the 
display is blank?

I don't have further ideas without seeing more of the code, and maybe look at 
the files with pdfdebugger ... maybe try removing "clearAllFontDescriptors" to 
see whether there's a problem with your logic.

Tilman

Am 14.04.2017 um 09:37 schrieb Vassallo, Fabio:
> Actually I don't save the file: i display it in the screen, and then the user 
> can choose to save it or not.
> So I currently create a byte[] containing the PDDocument data and I use it to 
> display the file:
>
> ByteArrayOutputStream outputStream = new ByteArrayOutputStream(); 
> PDDocument document = ...
>
> <... build the PDF content ...>
>
> try
> {
>      document.save(outputStream);
>      document.close();
>      return outputStream.toByteArray(); } catch(IllegalStateException 
> e) {
>      ...
> }
>
> I tried to do this:
>
> try
> {
>      document.save(outputStream);
>      document.close();
>      document = PDDocument.load(outputStream.toByteArray());
>      clearAllFontDescriptors();
>      outputStream = new ByteArrayOutputStream();
>      document.save(outputStream);
>      document.close();
>      return outputStream.toByteArray(); } catch(IllegalStateException 
> e) {
>      ...
> }
>
> Where clearAllFontDescriptors() should perform the 
> cosObj.removeItem(fontName). But apparently the PDDocument.load(...) doesn't 
> work as I expected, and the resulting file is empty.
>
> Fabio Vassallo
> Product Development (CIS)
>


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