Henry Holtgeerts

The simple, no-frills block to easily embed PDF files on your WordPress site. 100% free, fully responsive and built for the Gutenberg Editor.
Quickly add PDFs from your media library, or paste a URL. This PDF Block is inspired by the Image Block for Gutenberg, and maintains tremendous ease of use.
Options: 
– Change PDF URL (from Media Library, or copy/paste one manually) 
– Show or Hide PDF toolbar 
– Control PDF alignment 
– Adjust PDF height
Compatibility: 
– Fully responsive 
– Works fine on Chrome, Firefox, Opera, Edge and IE11 
– Does not require Javascript for users to see PDFs
This PDF Block takes advantage of browser’s native support of PDFs, allowing users to view and interact with your PDFs without the need for any Javascript.

PDF Block

The simple, no-frills block to easily embed PDF files on your WordPress site.

mirceatm

By default, <a href="https://wordpress.org/plugins/contact-form-7/" rel="ugc">Contact Form 7</a> dose not keep data it sends trough it’s contact forms. 
While plugins like <a href="https://wordpress.org/plugins/flamingo/" rel="ugc">Flamingo</a> save that data, uploaded files are not added to Media Library. 
This plugin will save uploaded files to Media Library before email is sent by CF7. 
This plugin will raise an event with the the full file path & name. 
Subscribe to <code>nmr_create_attachment_file_name</code> filter to get and/or update data before attachment is added to media library.
<pre><code>// The filter callback function.
function example_callback( $file_name ) {
 // (maybe) modify $file_name.
 return $file_name;
}
add_filter( 'nmr_create_attachment_file_name', 'example_callback', 10, 1 );
</code></pre>
Subscribe to <code>nmr_before_insert_attachment</code> filter to be able to change attachment attributes: caption and description are ‘post_excerpt’ and ‘post_content’. 
For other attributes, check documentation for <a href="https://developer.wordpress.org/reference/functions/wp_insert_attachment/" rel="nofollow ugc">wp_insert_attachment</a>.
<pre><code>// The filter callback function.
function before_insert_attachment_callback( $attachment ) {
 // (maybe) modify $attachment array.
 return $attachment;
}
add_filter( 'nmr_before_insert_attachment', 'before_insert_attachment_callback', 10, 1 );
</code></pre>
Optionally, subscribe to <code>nmr_should_skip_save_attachment_to_media_library</code> filter to be able to skip saving the attachment to media library: return true to skip, false is the default behaviour that saves the attachment to media library. Filter <code>nmr_before_insert_attachment</code> will not be called if skip was true.
<pre><code>// The filter callback function.
function skip_media_library_callback( $skip_save_to_media_library ) {
 // return true to skip saving to Media Library, false to save.
 return true;
}
add_filter( 'nmr_should_skip_save_attachment_to_media_library', 'skip_media_library_callback', 10, 1 );
</code></pre>
This plugin will send the final attachment id if you are interested in getting other details, like attachment url. 
Listen to <code>nmr_create_attachment_id_generated</code> action.
<pre><code>// The action callback function.
function example_callback_id_generated( $attachment_id ) {
 // (maybe) do something with the args.
 $url = wp_get_attachment_url( $attachment_id );
}
add_action( 'nmr_create_attachment_id_generated', 'example_callback_id_generated', 10, 1 );
</code></pre>
<h4>Docs & Support</h4>
Check the <a href="https://wordpress.org/support/plugin/store-file-uploads-for-contact-form-7/" rel="ugc">support forum</a> on WordPress.org. If you can’t locate any topics that pertain to your particular issue, post a new topic for it.
<h4>Store file uploads for Contact Form 7 Needs Your Support</h4>
It is hard to continue development and support for this free plugin without contributions from users like you. If you enjoy using -Store file uploads for Contact Form 7- and find it useful, please consider <a href="https://paypal.me/mirceatm" rel="nofollow ugc">making a donation</a>. Your donation will help encourage and support the plugin’s continued development and better user support.
<h4>Privacy Notices</h4>
With the default configuration, this plugin, in itself, does not:
<ul>
<li>track users by stealth;</li>
<li>write any user personal data to the database;</li>
<li>send any data to external servers;</li>
<li>use cookies.</li>
</ul>
It will, however store uploaded files trough Contact Form 7 in WordPress Media Library. 
Make sure your website users are aware of this fact!!!
<h3>Pro Version</h3>
Need more? The Pro version adds 13 features:
<ul>
<li>Per-form control — choose which forms save files, set custom folder and rename pattern per form</li>
<li>Auto-rename — rename files using patterns like <code>{name}-{date}.{ext}</code> from other CF7 fields</li>
<li>Unique filenames — automatically avoid overwriting files with the same name</li>
<li>Custom upload folder — save files to a specific subfolder per form</li>
<li>File URL in email — replace <code>[file]</code> mail tag with a clickable link instead of an attachment</li>
<li>Skip-mail compatibility — save files even when CF7’s <code>skip_mail: on</code> is set</li>
<li>Upload log — admin screen listing every uploaded file with form, date, size, and download link</li>
<li>Private files — store files outside the Media Library with access protection</li>
<li>Admin notification — receive an email with file link on every upload</li>
<li>Flamingo integration — link uploaded files to Flamingo inbound message entries</li>
<li>Auto-delete — remove uploads older than a configurable number of days</li>
<li>Image resize / compress — resize and compress images on upload</li>
<li>Duplicate detection — skip saving if the same file was already uploaded (MD5 check)</li>
</ul>
<a href="https://namir.ro/downloads/store-file-uploads-for-contact-form-7-pro/" rel="nofollow ugc">Get Pro →</a>

Store file uploads for Contact Form 7

I am getting error while submitting to CF7.

Note: I am trying to upload MP3 files

<pre>fatal error:
Array
(
 [type] => 1
 [message] => Uncaught Error: Call to undefined function wp_read_audio_metadata() in /home/theuxm/html/wp-admin/includes/image.php:489
Stack trace:
#0 /home/theuxm/html/wp-content/plugins/store-file-uploads-for-contact-form-7/store-file-uploads-for-contact-form-7.php(39): wp_generate_attachment_metadata()
#1 /home/theuxm/html/wp-content/plugins/store-file-uploads-for-contact-form-7/store-file-uploads-for-contact-form-7.php(55): nmr_create_attachment()
#2 /home/theuxm/html/wp-includes/class-wp-hook.php(305): nmr_on_before_cf7_send_mail()
#3 /home/theuxm/html/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters()
#4 /home/theuxm/html/wp-includes/plugin.php(518): WP_Hook->do_action()
#5 /home/theuxm/html/wp-content/plugins/contact-form-7/includes/submission.php(617): do_action_ref_array()
#6 /home/theuxm/html/wp-content/plugins/contact-form-7/includes/submission.php(86): WPCF7_Submission->before_send_mail()
#7 /home/theuxm/html/wp-content/plugins/contact-form-7/includes/submission.php(27): WPCF7_Submission->proceed()
#8
 [file] => /home/theuxm/html/wp-admin/includes/image.php
 [line] => 489
)
</pre>

Getting Error Call to undefined function wp_read_audio_metadata

When this is active, attachments sent trough Contact Form 7 shortcode [file ] will be stored in your Media Library

PDF Block vs Store file uploads for Contact Form 7