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Error in converted PDF
Posted: Wed Feb 06, 2019 6:43 am
by punith8626
HI ALL,
I have a png file and I am trying to convert to PDF using nconvert. The resultant file which is generated is not correct and its not opening.
Getting below Error when i open the PDF.
Code: Select all
There was an error processing a page. There was a problem reading this document(14).
Please find the attached png file for testing.
Here is the command I have used to convert the png to PDF.
Code: Select all
nconvert -out pdf -multi -c 1 -overwrite -o C:\Users\test\Desktop\tiff\t\test.pdf C:\Users\test\Desktop\tiff\t\test.png
- testimage.png (4.07 KiB) Viewed 2289 times
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 7:10 am
by cday
For the PDF compression term please try:
And for a single input file, the
-multi term is not required and may be causing a problem, for multiple input files try placing term in another position in your code.
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 7:36 am
by punith8626
cday wrote: Wed Feb 06, 2019 7:10 am
For the PDF compression term please try:
And for a single input file, the
-multi term is not required and may be causing a problem, for multiple input files try placing term in another position in your code.
I tried with both ways and did not succeed.
Did you try to convert the file that I attached ?
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 7:50 am
by cday
I can't easily test your code as I am on vacation and only have my laptop.
You tried removing the -multi term when using a single input file?
Your test PNG is 32-bit, possibly that is relevant?
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 8:16 am
by cday
You are trying to save a 32-bit image as a 1-bit black and white image, please see
this post which may be relevant.
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 8:51 am
by punith8626
cday wrote: Wed Feb 06, 2019 7:50 am
I can't easily test your code as I am on vacation and only have my laptop.
You tried removing the
-multi term when using a single input file?
Your test PNG is 32-bit, possibly that is relevant?
Yes the test png is 32 bit depth.
I have used below command
Code: Select all
nconvert -out pdf -c 1 -overwrite -o C:\Users\test\Desktop\tiff\t\test.pdf C:\Users\test\Desktop\tiff\t\test.png
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 8:58 am
by cday
punith8626 wrote: Wed Feb 06, 2019 8:51 am
I have used below command
Code: Select all
nconvert -out pdf -c 1 -overwrite -o C:\Users\test\Desktop\tiff\t\test.pdf C:\Users\test\Desktop\tiff\t\test.png
Does it work?
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 9:02 am
by punith8626
cday wrote: Wed Feb 06, 2019 8:58 am
punith8626 wrote: Wed Feb 06, 2019 8:51 am
I have used below command
Code: Select all
nconvert -out pdf -c 1 -overwrite -o C:\Users\test\Desktop\tiff\t\test.pdf C:\Users\test\Desktop\tiff\t\test.png
Does it work?
No
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 9:09 am
by cday
punith8626 wrote: Wed Feb 06, 2019 9:02 am
cday wrote: Wed Feb 06, 2019 8:58 am
punith8626 wrote: Wed Feb 06, 2019 8:51 am
I have used below command
Code: Select all
nconvert -out pdf -c 1 -overwrite -o C:\Users\test\Desktop\tiff\t\test.pdf C:\Users\test\Desktop\tiff\t\test.png
Does it work?
No
Please try converting the input 32-bit file to black and white before saving to PDF with CCITT G4 compression, as in the link above...
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 9:21 am
by punith8626
cday wrote: Wed Feb 06, 2019 9:09 am
punith8626 wrote: Wed Feb 06, 2019 9:02 am
cday wrote: Wed Feb 06, 2019 8:58 am
Does it work?
No
Please try converting the input 32-bit file to black and white before saving to PDF with CCITT G4 compression, as in the link above...
I have situation like this:
I have colored multi tiff image from that I need to convert perticular images to PDF.
Before I was having only black and white images and I was converting black and white multi tiff images to png and then i was generating PDF from that.
Now I have colored multi tiff but I am not able to convert to PDF
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 9:24 am
by punith8626
punith8626 wrote: Wed Feb 06, 2019 9:21 am
cday wrote: Wed Feb 06, 2019 9:09 am
Please try converting the input 32-bit file to black and white before saving to PDF with CCITT G4 compression, as in the link above...
I have situation like this:
I have colored multi tiff image from that I need to convert perticular images to PDF.
Before I was having only black and white images and I was converting black and white multi tiff images to png and then i was generating PDF from that.
Now I have colored multi tiff but I am not able to convert to PDF
I tried with below command
Code: Select all
nconvert -out pdf -binary nodither -multi -overwrite -o C:\Users\test\Desktop\tiff\t\test.pdf C:\Users\test\Desktop\tiff\t\*.png
I am able to convert to PDF but clarity is not good and I am getting only black and White.
Re: Error in converted PDF
Posted: Wed Feb 06, 2019 9:38 am
by cday
punith8626 wrote: Wed Feb 06, 2019 9:24 am
I am able to convert to PDF but clarity is not good and I am getting only black and White.
The PDF compression option in your original code is CCITT G4, which is a black and white option.
If you wish to retain colour, use one of the compression options that support colour...
I'm not sure how retaining a 32-bit image, if you need to, might limit your choice of compression method, possibly not a factor?