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— title: [`Hyperref`](https://ctan.org/pkg/Hyperref) and repeated page numbers category: usage permalink: /FAQ-pdfpagelabels date: 2014-06-10 —

The [`book`](https://ctan.org/pkg/book) class (and its friends and relations) automatically changes the display of page numbers in the frontmatter of the document to lower-case roman. This is fine for human readers, but if [`hyperref`](https://ctan.org/pkg/hyperref) has been misconfigured, the existence of pages have the same page number can cause problems. Fortunately, the configuration options to make [`hyperref`](https://ctan.org/pkg/hyperref) “do the right thing” are (by default) set up to avoid problems.

The two options in question are:

- `plainpages=false` Make page anchors using the

```formatted form of the page number.  With this option,
[`hyperref`](https://ctan.org/pkg/hyperref) writes different anchors for pages "ii" and "2".
(This is the default value for the option, which is a
_good thing_&hellip;)
If the option is set `true` [`hyperref`](https://ctan.org/pkg/hyperref) writes page
anchors as the arabic form of the page number, rather than the
formatted form that gets printed; this is not usually appropriate.```

- `pdfpagelabels` Set PDF page labels; i.e.,

```write the value of `\thepage` to the PDF file so that
Acrobat Reader can display the page number as (say) "ii (4
of 40)" rather than simply "4 of 40".```

The two should be used whenever page numbering is not just “1&hellip;n”; they may be used independently, but usually are not.

The recipe isn't perfect: it relies on `\thepage` being different for every page in the document. A common problem arises when there is an unnumbered title page, after which page numbers are reset: the pdfTeX warning of “[duplicate destinations](FAQ-hyperdupdest)” will happen in this case, regardless of the options.

3_composition/texte/pages/numerotation_des_pages/hyperref_et_les_numeros_de_pages_identiques.1528032877.txt.gz · Dernière modification: 2018/06/03 15:34 par samcarter