[Solved] PDF saved as a Blank Page

Discuss the word processor

Re: PDF saved as a Blank Page

Postby Bill » Fri May 08, 2020 8:05 am

John_Ha wrote:Bill

If I download the original file and open it with LO 6.3.5.2 it looks OK but when I export it to a PDF/A-2b, it gives a brown background to the barcode.

If I then send both brown backgrounds to the back Writer reveals two sets of white letters which I delete. Just to be sure I bring the barcode to the front. It looks fine in LO Writer but the PDF/A-2b still has brown behind the barcode as in the screenshot below.

I suspect that this is caused by the z-order (front to back order) of objects being changed during the export. That would be a bug in LO 6.3.5.2. The export using LO 6.4.3.2 does not have the brown background covering the bar code.

John_Ha wrote:If I open it in AOO 4.1.7 a brown background covers everything on the left and the title is missing on the right. If I send both brown backgrounds to the back the white text is revealed which I delete. The griffin at bottom right is a white rectangle - I send it back one level to reveal the griffin. I have to send the front cover image backwards to reveal the title. It now looks OK. When I export it to a PDF (AOO does not offer the /A-2b option) it is exported correctly.

I believe this is a bug in AOO 4.1.7 which sometimes changes the z-order of objects. In the original file produced by LO 6.3, the brown background is behind every other object and the griffin image is in front of every other object. When the original file is opened by AOO 4.1.7, the brown background has moved in front of every other object and the griffin image has moved behind every other object. Other objects/images have also changed position in the z-order.
AOO 4.1.7, LO 6.3.6.2 and LO 6.4.3.2 on Kubuntu 20.04
Bill
Volunteer
 
Posts: 7864
Joined: Sat Nov 24, 2007 6:48 am

Re: PDF saved as a Blank Page

Postby John_Ha » Fri May 08, 2020 10:15 am

Bill wrote:I believe this is a bug in AOO 4.1.7 which sometimes changes the z-order of objects.

Can you possibly give me a quick overview of what the z-order hierarchy is. I noticed that in content.xml the z-order was either 1 or 2 but I don't know what that means.
LO 6.4.4.2, Windows 10 Home 64 bit

See the Writer Guide, the Writer FAQ, the Writer Tutorials and Writer for students.

Remember: Always save your Writer files as .odt files. - see here for the many reasons why.
John_Ha
Volunteer
 
Posts: 7794
Joined: Fri Sep 18, 2009 5:51 pm
Location: UK

Re: PDF saved as a Blank Page

Postby Bill » Fri May 08, 2020 12:49 pm

The z-order is the stacking order for objects. Each draw object and image has a unique z-index value (search in content.xml for "z-index"). In this case there are 12 draw objects and 4 images with z-index values from 0 to 15. If two objects overlap, the one with the higher z-index value would be in front of the other object. When you select an object and select "Back One", Writer should swap the z-index values of the selected object and the next lower object.

In the document uploaded by the OP, Shape3 (one of the brown backgrounds) has z-index = 0 (behind all other objects), but if the document is opened by AOO 4.1.7 and saved with a different name, the content.xml of the new document will reveal that Shape3 has z-index = 15 (in front of all other objects).
AOO 4.1.7, LO 6.3.6.2 and LO 6.4.3.2 on Kubuntu 20.04
Bill
Volunteer
 
Posts: 7864
Joined: Sat Nov 24, 2007 6:48 am

Re: PDF saved as a Blank Page

Postby John_Ha » Fri May 08, 2020 12:58 pm

Bill
Thanks!
LO 6.4.4.2, Windows 10 Home 64 bit

See the Writer Guide, the Writer FAQ, the Writer Tutorials and Writer for students.

Remember: Always save your Writer files as .odt files. - see here for the many reasons why.
John_Ha
Volunteer
 
Posts: 7794
Joined: Fri Sep 18, 2009 5:51 pm
Location: UK

Re: PDF saved as a Blank Page

Postby RoryOF » Fri May 08, 2020 1:04 pm

This emphasises the point that final, detailed formatting of anything should always be done on one computer, using the one (unchanged) version of the editing program.
Apache OpenOffice 4.1.7 on Xubuntu 20.04.1 (mostly 64 bit version) and very infrequently on Win2K/XP
User avatar
RoryOF
Moderator
 
Posts: 31414
Joined: Sat Jan 31, 2009 9:30 pm
Location: Ireland

Previous

Return to Writer

Who is online

Users browsing this forum: No registered users and 15 guests