Vanilla PDF Embed v0.0.8

**Basic use**

To embed a PDF you’ve uploaded to your WordPress site’s media

library, simply put the URL for the attachment page in your

post on its own line. The PDF will be embedded with the

default settings at that location, as if it were using oEmbed.

**Examples:**

Post short URL:

http://localhost/?p=9

Attachment default URL:

http://localhost/?attachment_id=9

Attachment pretty URL:

http://localhost/test/report1/

Media direct URL:

Нажмите для доступа к report1.pdf

This doesn’t work for PDFs hosted on other websites, or if you

need to change the parameters.

**Using the [pdf] shorttag**

If the PDF isn’t in your WordPress site’s media library, or if

you want to customize any parameters for the embed, then use

the [pdf]...[/pdf] shorttag. Between the tags, you’ll provide

the URL for the PDF to embed. If the PDF is in your WordPress

site’s media library, you can either give the attachment page

URL, or the URL to the PDF file directly.

The [pdf] shorttag accepts several optional parameters:

• width — sets the width of the frame the PDF is embedded in.

By default, this is set to 100%.

• height — sets the height of the frame the PDF is embedded

in. By default, this is unset.

• title — sets the title of the PDF, for use in the fallback

link text.

• open_params — sets the PDF open params

which control how the PDF file is displayed in the embed frame.

These are poorly supported in browsers.

**Examples:**

Post short URL: [pdf width="200px"]http://localhost/?p=9[/pdf]
Attachment default URL: [pdf height="500em"]http://localhost/?attachment_id=9[/pdf]
Attachment pretty URL: [pdf title="Report 1"]http://localhost/test/report1/[/pdf]
Media direct URL: [pdf]http://localhost/wp-content/uploads/2013/11/report1.pdf[/pdf]
Change PDF open params: [pdf open_params="page=10&view=Fit"]http://localhost/?p=9[/pdf]

**Compatibility**

The PDF should be embedded in the page, with the document scaled so it fills the

embed frame horizontally. Unfortunately, embedding PDFs is not well-supported.

**Auto-loading embedded PDFs**

Unlike with images, web browsers may not automatically download and display

embedded PDFs when the page is loaded. For security reasons, some users prefer

not to allow the PDF plugin to run unless they trust the website the PDF comes

from. This generally leaves a grey rectangle that the user may click on to allow

the PDF to be downloaded and displayed.

**PDF open parameters**

As of v0.0.8, you can set the PDF open parameters

by setting open_params in the shortcode, as shown above. This is unlikely to actually

anything, since PDF open parameters are poorly supported in browsers. But you can try!

Provide the parameters as a query string: page=1&view=Fit. Refer to the Adobe

documentation on what parameters are available.

**Chrome**

The PDF should be scaled/zoomed within the embed frame so that the full

horizontal width of the paper fills the frame. This is not

supported in

Chrome’s default PDF viewer, so the document will probably be scaled to 100%,

which may either mean the document doesn’t fill the frame, or, more likely, the

document is too wide for the frame, and the right-hand side of the document is

hidden.

**Internet Explorer**

Internet Explorer requires a PDF plugin to render embedded PDFs. Generally,

that’s Adobe Reader. Without such a plugin, the fallback download link will be

used.

**Mobile browsers**

In particular, mobile browsers may show a grey box instead of the embedded PDF,

and will download the file when it is clicked. Other mobile browsers might embed

the PDF, but won’t allow it to scroll.

**Альтернативы**

Your best alternative is to not embed PDFs. PDFs are bad for many reasons:

not easily indexed by search engines, not easily accessible by readers who use

assistive technologies, poorly supported by web browsers (as seen above) and so

on. They’re just bad and you should avoid embedding PDFs if you can.

If you really can’t, then you might consider using another solution like

https://pdfobject.com/ or PDF.js.