Behavior when Current Page is an even number of pages in two pages side-by-side mode

[rakunavi]

Hello all,

There is a somewhat odd behavior regarding the current page in the document toolbar when two pages are displayed side-by-side mode. This report is divided into three major parts, but I believe they are all related, so I will report them together in this topic.

• figure.png

• sample.zip

Issue #1

• When the current page is an even number of pages, changing the display mode alternately between single page and two pages side-by-side causes the current page to go back one page. Please see the verification video for more details. In particular, note the change in the current page in the document toolbar.
  
  
  • Animation1-PDFXCE.gif
  The following is the verification procedure.
  
  
  1. Turn the pages over to page 10 in single page mode. Confirm that the current page in the document toolbar is page 10.
  2. Change to two pages side-by-side mode. Verify that the current page in the document toolbar has changed to page 9.
  3. Change to single page mode. Page 9 will be displayed, one page before the page 10 that was originally displayed in Step 1.
  Note that if you perform the same operation in Acrobat, the current page will be maintained even if you switch the display mode.
  
  
  • Animation1-ACRO.gif

Issue #2

• When the destination page of a bookmark is an even-numbered page, in two pages side-by-side mode, the current page in the document toolbar is the odd-numbered page one page before the specified even-numbered page. Therefore, as reported in Issue #1, when the display mode is changed alternately between single page and two pages side-by-side, the current page reverts to the odd page one page before the destination page of the bookmark. See the verification video for more details. Again, note the change in the current page in the document toolbar.
  
  
  • Animation2-PDFXCE.gif
  Here are the verification procedure.
  
  
  1. Change to two pages side-by-side mode.
  2. Select a bookmark and navigate to the page. The bookmark has page 10 set as the destination, but the current page in the document toolbar is page 9.
  3. Change to single page mode. Page 9, one page before page 10, which is the destination of the bookmark, will be displayed.
  If you operate the bookmark in Acrobat using the same procedure, the current page will be page 10.
  
  
  • Animation2-ACRO.gif

Issue #3

• If the current page is an even-numbered page, when you create a link starting from the even-numbered page, the link returns to the original page after specifying the destination of the link, but the current page is not the original even-numbered page, but the odd-numbered page one page before. Therefore, if you try to copy multiple links to the same page using a shortcut key, even if you copy and paste the link thinking that the current page is on an even page, the current page has actually changed to an odd page one page before, so the link is unintentionally pasted to the odd page. To paste the link to an even page, you need to move the current page forward by one page using the arrow cursor keys. We need to be careful because the operation method needs to be changed depending on whether the current page is odd or even.
  
  See the verification video for more details. Again, please note the change of the current page in the document toolbar.
  
  
  • Animation3-PDFXCE.gif
  The following is the verification procedure.
  
  
  1. In two pages side-by-side mode, turn the pages over to page 10 by using the arrow cursor key.
  2. Create a link starting from page 10 in the link creation mode. You can specify any action for the link. I use named destinations frequently, so I specify a named destination to another file in the verification. Whichever action you set, you will return to the original page after setting it, but make sure that the current page is not the original page 10, but page 9, which is one page before. Therefore, if you copy and paste the link using the shortcut key without changing the current page, the link will be pasted to page 9.
  If you operate the bookmark in Acrobat using the same procedure, after the link is created , the current page will be page 10. Therefore, even if you copy and paste using the shortcut key, the link will be pasted to page 10.
  
  
  • Animation3-ACRO.gif

Hoping that the above information will be of some help to you.
Thank you so much for your continued support.

Best regards,
rakunavi

- PDF-XChange Editor Plus Version: 10.2.1 build 385
- OS Version: Windows 11 Home 23H2 Build 22631.3155
- PC Model: Lenovo IdeaPad C340-15IWL, HP All-in-One 22-c0xx

[Tracker Supp-Stefan]

Hello rakunavi,

Thanks for the reports!
I greatly appreciate the detailed explanations and videos you provide - those help a lot!

All 3 issues you reported above seem to be related - so I made one ticket for them all (and included all your gifs in the ticket) - they all stem from what appears to be us always activating the first of the two pages when you are in two page mode.

This is the ticket and we will address those things as soon as possible:
#6816: Editor 385: Issues with which page is active when navigating explicitly to an Even page in two pages continuous mode.

Kind regards,
Stefan

[rakunavi]

Thank you, Stefan, for creating the ticket!

Thank you for taking time out of your busy schedule. For your information, although the title of the ticket you created contains the word "continuous," the issue occurs in both continuous and non-continuous mode, as I verified in the video in the non-continuous mode of Two Pages.

Please give my best regards to developers.

Best regards,
rakunavi

[Tracker Supp-Stefan]