Specify a specific logical page number or named destination in the URL of a pdf
Most web browsers now support linking directly to physical page numbers in pdf documents, as in this example, which links to the "Preface" of a fourteen page document:
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#page=7
However, the Preface is not labeled page 7, it is on "logical" page vii. So, is there a syntax (or recommended future syntax) for linking directly to the "logical page number" or "named destination," which in this case is "vii"?
I'm imagining a syntax like one of these:
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#vii
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#page=@vii
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#page=!vii
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#page=~vii
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#page=(vii)
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#page=[vii]
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#page={vii}
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#dest=vii
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#nameddest=vii
http://www.ipcc.ch/pdf/assessment-report/ar5/wg1/WG1AR5_Frontmatter_FINAL.pdf#logicalpage=vii
However, I've tried all ten of those syntaxes in Chrome 67.0.3396.87 and in Firefox 60.0.2 -- none of them work.
Only the "...#page=7" syntax works.
I wish that Adobe Acrobat Reader would support such a syntax, providing a standardized example for the web browsers.
However Adobe Acrobat Reader DC version 2018.011.20040 does not seem to support opening URLs of any sort. I'm pretty sure it used to work in some earlier versions of Reader, but with this version when I try opening the URL of a .pdf file under Windows 10, it reports:
⚠️ The URL you have provided could not be reached. Please verify that the URL is correct and that the network location is reachable.
