XnView Software

The Esc key in graphic editors is usually used to complete some operation inside the editor (for example, to complete text input and go to drawing or other menu items), but not EXIT the editor.
In XnViewMP, when you click on Esc, the editor is shut down without confirmation and the choice to ...

The Esc key in graphic editors is usually used to complete some operation inside the editor (for example, to complete text input and go to drawing or other menu items), but not EXIT the editor.
In XnViewMP, when you click on Esc, the editor is shut down without confirmation and the choice to Save ...

1) I downloaded from the links (given above) 2 files: A9WUUYb.png and HE28bhs.png
2) I make various transformations by your program:

2a) open PNG --> save PDF
Get:
A9WUUYb=(PNG--PDF)=No_open.pdf
HE28bhs=(PNG--PDF)=No_open.pdf
(Acrobat does not open this files).

2b) open PNG --> save GIF open ...

Here is another proof of the PDF conversion error:

- open the PNG file (for example, downloaded A9WUUYb.png) with the XnViewMP program
- save it as a PDF
- Open the PDF file with Acrobat

(I have an error:
“An error occurred while processing the page. An error occurred while reading the document ...

Look at the file header of a bad file
https://i.imgur.com/HE28bhs.png
The same file header, corrected by another program
https://i.imgur.com/A9WUUYb.png

PDF/A Manager from pdftron shows a few more errors, but some of them belong to the standard PDF/A:
- e_PDFA11: Corrupt document
- e_PDFA122 ...

These PDF files contain several different errors, that Acrobat cannot handle.

One of the errors is the absence of the “%” sign in the file header:
there is '% PDF-1.4 '
should be '% PDF-1.4 %'
The PDF file properties in 0.93 now show no embedded fonts, which as you say is correct as the file ...

There are several errors in the structure of the PDF file.
where?
------------------
Hi, Pierre/.

These PDF files contain several different errors, that Acrobat cannot handle.
One of the errors is the absence of the “%” sign in the file header:
there is '% PDF-1.4 '
should be '% PDF-1.4 ...

My files were created by the latest version of XnView MP (v.0.93.1)/
There are NO fonts in both of my files:
https://dropmefiles.com/W2nh9

Scan through XnViewMP -> Save PDF
Each PDF file individually opens.
But any manipulation of these files (combine files or insert a PDF page from another file), then the error “Invalid font object or font description object”.
There are several errors in the structure of the PDF file.


Files scanned ...