Here's a little macro that I've been working on. It handles both
internally-stored (base64 encoded data URIs) and externally-stored (using
_canonical_uri) PDFs. It uses URL parameters to omit the default PDF
viewer's toolbar, and can also automatically scroll to a specified page
within the PDF:
```
\define PDF(tid,page,suffix)
<$vars hdr={{{ [[data:]] [[$tid$]get[type]] [[;base64,]] +[join[]] }}}>
<$vars arg="#toolbar=0&page=$page$&$suffix$">
<$vars src={{{ [[$tid$]get[_canonical_uri]]
~[[$tid$]get[text]addprefix<hdr>] [<arg>] +[join[]] }}}>
<$vars sty="border:0;width:100%;height:100%;">
<object type="application/pdf" data=<<src>> style=<<sty>>>
<embed type="application/pdf" src=<<src>> style=<<sty>>/>
</object>
\end
```
To set the desired display size, enclose the `<<PDF>>` macro inside a
`<div>` using a style attribute to specify the width and height.
For example, to show a regular page size, you can write:
`<div style="width:8.5in;height:11in;"><<PDF "SomeTiddler">></div>`
or, to scale it down to half size:
`<div style="width:4.25in;height:5.5in;"><<PDF "SomeTiddler">></div>`
or, as a thumbnail:
`<div style="width:4.25em;height:5.5em;"><<PDF "SomeTiddler">></div>`
Here's some documentation from Adobe about using URL parameters for opening
PDF files:
https://pdfobject.com/pdf/pdf_open_parameters_acro8.pdf
enjoy,
-e
On Friday, February 25, 2022 at 4:36:52 AM UTC-8 Petri M. wrote:
> Works great! Thank you!
>
> -Petri
>
> On Friday, February 25, 2022 at 2:24:24 PM UTC+2 [email protected] wrote:
>
>>
>> <object data="./path/to/filename.pdf" type="application/pdf" width="100%"
>> height="540px"></object>
>> Em quinta-feira, 24 de fevereiro de 2022 às 18:46:14 UTC-3, Sergio Rolim
>> escreveu:
>>
>>> https://groups.google.com/g/tiddlywiki/c/TylT-kCvfTk/m/qiz5B4-zDAAJ
>>>
>>> Em quinta-feira, 24 de fevereiro de 2022 às 08:07:20 UTC-3, Petri M.
>>> escreveu:
>>>
>>>>
>>>> I just added a pdf as an external image with _canonical_uri and
>>>> everything works fine, but the pdf is quite large and it is very hard to
>>>> read from the small pdf viewer because I use two column system. I thought
>>>> about opening the tiddler in an external window but for some reason the
>>>> pdf
>>>> only get *smaller *and is entirely impossible to read.
>>>>
>>>> Can I scale the pdf zoom and perhaps put it in landscape mode or
>>>> something? I guess it is being handled by adobe pdf reader. Or maybe fix
>>>> the opening as a new window?
>>>>
>>>> I mean look at this, can't really do anything with this:
>>>>
>>>> [image: Screenshot 2022-02-24 130417.png]
>>>>
>>>
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