Upload Thumbnail Image In PDF

Hi there,

So we are both on the same page, can you confirm if you are referring to the PDF output of the Gravity Forms Post Image field?

The File Upload Field. I want to upload the full size image in gravity form, but show the small thumbnail version in the generated pdf

• This reply was modified 2 years, 9 months ago by OC WordPress Web Designer.

Thanks for clarifying.

The Gravity Forms entry only saves the URL (and various meta data) of the post image that is originally uploaded and stored in the Gravity Forms upload directory. Gravity Forms don’t currently store a reference to the Media ID permanently, and it appears to only be available in the entry during the initial submission. The entry only stores the post ID permanently.

That means you’ve two options to get the information you need for the PDF:

1. Use the Post ID to get an array of all images attached to the post and select the one you are interested in displaying.

2. During form submission (using the undocumented hook gform_pre_handle_confirmation), update the stored database Post Image field entry data with the temporary entry data (using the GFAPI), which includes the media ID. You can then parse this info and display the correct sizes media in the PDF using this ID.

Which ever option you decide to use, you’ll need to hook into https://docs.gravitypdf.com/v6/developers/filters/gfpdf_pdf_field_content to override the markup generated for the post_image field type.

I hope this information helps you get the results you’re looking for.

Ok, thanks.

You refer to a post image (Use the Post ID to get an array of all images attached to the post), but i’m looking for just the normal “File Upload Field”. The uploads are not attached to a post.

Regardless, i’m not experienced enough to create this hook on my own. Do you offer services to provide the function necessary to show thumbnails in the pdf from the basic gravity forms upload field?

Gravity Forms does not resize any uploaded files / images when using a standard File Upload field. This process only occurs when using the Post Image field type and that is because the image is added to the Media Library where WordPress core will generate the various image sizes.

Also, by default Gravity PDF will only display links to uploaded images when using a standard Gravity Forms File Upload field and not an embedded image. To display the actual image, you may be using a Post Image field or a third party Gravity Forms add-on like Image Hopper.

We do offer a Bespoke PDF service for users with customization requests like yours. Touch base with our team and we can discuss further.

• This reply was modified 2 years, 9 months ago by Jake Jackson. Reason: tweak info about saving upload to media library
• This reply was modified 2 years, 9 months ago by Jake Jackson.

Oh that makes sense, i didn’t specify that i’m using https://gravitywiz.com/documentation/gravity-forms-media-library/ so the thumbnails are being generated for every image since they are uploaded in the media library.

Is there a hook to call the image source to the thumbnail version to the pdf since it is being generated?

Gotcha! Custom development is still required, but Gravity Wiz makes it much easier to get the media IDs: https://gravitywiz.com/documentation/gravity-forms-media-library/#get-file-id-8217-s-for-a-multi-file-upload-field