Hi,
Maybe explain what your "program" is. Explain the whole sequence from
start to finish. PDFBox doesn't reduce image quality if you just loaded
and saved a PDF.
Could it be that you created an image from a PDF, then created a PDF
from this image? If yes, then take care to render at a good dpi the
first time.
Tilman
Am 20.09.2017 um 18:12 schrieb [email protected]:
Hi
My PDF is the result of loading it into my program and then saving it
with the program. When I use document viewer it is clear, it is only
when I put it through my program that the file size is reduced from
1.2mB to 532.4kB ?
Gerry
-------- Forwarded Message --------
Subject: Re: pdf shows as very pixelated
Date: Wed, 20 Sep 2017 17:54:06 +0200
From: Tilman Hausherr <[email protected]>
Reply-To: [email protected]
To: [email protected]
Hi,
Your PDF is made from a low resolution scan, or from a hires image
that was reduced poorly. It looks bad even with Adobe Reader. The size
of the image within the PDF is 842 x 595. A good scan (300dpi) is 3508
x 2480 pixels.
Tilman
Am 20.09.2017 um 17:42 schrieb [email protected]:
Hi
The link to my pdf is:
http://www116.zippyshare.com/v/WdY6AYy7/file.html
Regards
Gerry
On 20.09.2017 17:27, Tilman Hausherr wrote:
Hi,
http://filedropper.com/
Tilman
PS: please keep it on list. This is a recent flaw in thunderbird,
get the "reply to list" icon.
Am 20.09.2017 um 17:22 schrieb [email protected]:
Hi Tilman
Thanks for your quick reply.
Could you please give me the name of a Sharehoster you like to use
and I will post a pdf on there.
Thanks
Gerry
On 19.09.2017 18:11, Tilman Hausherr wrote:
Hi,
Please try again with 2.0.7. If it doesn't work as wished, please
upload the PDF to a sharehoster.
Tilman
Am 19.09.2017 um 17:44 schrieb Gerry:
Hi
I am using pdfbox-app-2.0.0 in my program.
I am using the following code:
public JPanel makeDocument() throws IOException,
FileNotFoundException{
File target = new File(filePath);
PDDocument pddocument = PDDocument.load(target);
JPanel displayView;
PDFRenderer pdfrend = new PDFRenderer(pddocument);
for (int i = 0; i < pddocument.getNumberOfPages(); i
++){
//BufferedImage pageImage =
pdfrend.renderImage(i,0.9f);
BufferedImage pageImage =
pdfrend.renderImageWithDPI(i,300);
this.docList.add(pageImage);
}
displayProcessing = new DisplayDocs2(this.docList);
displayView = displayProcessing.getPanel();
pddocument.close();
return displayView;
}
when I use this code to open a computer produced pdf (with a
white background) it works fine.
But when I try to open a pdf which was a scanned page it come out
pixelated and pretty much unreadable like grey instead of white
background has an effect.
Any help gratefully received. Sorry for my bad descriptive skills
I am learning as I go.
Gerry
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