Custom theme – how to link the image without posting it

By default an image belongs only to one post. Indeed that post is the parent post of the attachments (that are posts too). I think that the comment by TheDeadMedic is very good option because it is native to WordPress, but you can only link a post with one Featured Image. If you want to attach several files you can use the plugin WP Better Attachments (link).

Related Posts:

  1. Why doesn’t WP_Image_Editor save images using the Filesystem API?
  2. Is there a plugin to make attaching images easier?
  3. Managing Images for a WordPress Blog: Picasa or Flickr?
  4. Automatically wrap post image in div
  5. Custom image size not selectable in uploader
  6. Retrieving and Storing Images Linked from Other Domains on Local Server?
  7. Customizer image control default value showing in customizer but not on frontend
  8. Importing media medium setting image gallery / image attachments
  9. Extract & Display the REAL first image attached to a post – extend the_post_thumbnail()
  10. Add filename to attachment page url
  11. How To Add buttons to the toolbar which appears in TinyMce when you click over images
  12. Image Editor does not affect custom sizes!
  13. How to display post title & excerpt when mouse hovers on an image?
  14. Automatically add image caption with values from a post parent field?
  15. Is there a way to dynamically get to your uploads folder?
  16. Using Fullscreenr with a wordpress blog – weird bug
  17. Get Image from Media Library with the Title
  18. Get Custom Logo Alt Text
  19. Using custom image resizing script in a page
  20. Background image not appearing
  21. Best way to allow overwriting images shipped with the plugin?
  22. NextGEN Gallery – open all images on page in fancybox [closed]
  23. Featured Image If Else Condition
  24. If custom image header does not exist display text header
  25. Is there a possiblity to replace profile image gravatar with custom user images
  26. Trying to set specific image dimensions and crop with ACF
  27. Customizing the gallery of the post correctly
  28. Personalized Gallery what are my options?
  29. adding fade on mouseover to images
  30. Lightbox not showing image caption
  31. WordPress 5: including larger thumbnail image sizes in srcset than I have set
  32. POST 429 Error when trying to place more than 20 images into post at once
  33. How to add the option to choose between sizes for featured image within post editor?
  34. Creating custom setting in add media popup
  35. Upload image without resizing but insert in post with resizing
  36. Bio comes up when the visitor clicks on a picture
  37. Adding images to anchors in the list created and fetched with wp_nav_menu
  38. Change default “Apply Changes To” radio option when editing images
  39. WP_Customize_Image_Control and selecting from library?
  40. featured images – custom links
  41. Get a different size of Image thumbnail while working with custom metabox
  42. Custom image sizes ignored in WP 3.5
  43. Edit image alignment in WordPress twentysixteen child theme on attachment page [closed]
  44. Set custom banner image size with wp_customize
  45. How to search for replacement titles and contents, excluding image URLs
  46. Custom Search on media files PDF images pages posts
  47. How do I remove a customiser option from a parent theme in a child theme?
  48. Hide text if not homepage
  49. Your thoughts on the interaction with one custom database table from WP?
  50. Is there a way to override require_once of the main theme on the child theme?
  51. Make RSS feed only accesible by Mailchimp
  52. Lost password and back to blog in same line
  53. WP custom routing does not work
  54. Best Practice for Displaying Categorized Posts on Front Page
  55. I tried to change my URL and ended up losing access to my site? I went into general settings and changed both WordPress URL and Site URL
  56. WordPress broken after domain name change
  57. How to allow multiple thumbnail upload for Posts?
  58. How to create “custom page types” with different custom fields in them?
  59. How to Restore Deleted Post Not in Trash
  60. How to Escape Custom Meta Data And Prefix Custom Meta ID
  61. Remove Customizer Control Choices (Type: Radio Array) using Child Themes
  62. Grabbing a data from wp_usermeta
  63. wordpress shortcode not working
  64. How to create a custom WordPress front page
  65. Custom Form not generating URL
  66. User Custom Dashboard
  67. Exclude current post but keep the same posts-per_page amount
  68. WordPress Command Question
  69. getting a 404 page for all pages except home. possibly permalinks
  70. How do I create a Custom Post Box that Connects Different Posts Together
  71. Pull Latest Forum Posts within WordPress
  72. Add custom border across footer widget area
  73. Custom menu not showing even though it shows as being registered?
  74. Open login logo URL in new tab
  75. Multisite with subdirectories, and a WordPress installation in a custom folder
  76. Display all subterms of a custom taxonomy filtered by parent terms
  77. Adding shortcode to product short description
  78. Display Custom Taxonomy Name As A Shortcode
  79. Latest update broke my custom login CSS
  80. Removing fields and buttons from admin dashboard?
  81. How to fix custom add menu page preventing media library from loading
  82. Unhook a function within a class in the child theme
  83. Where to put coding a validation script for store? [duplicate]
  84. Change the template of my Blog entries
  85. User WordPress menu in custom page
  86. Custom display for homepage, tag and author pages
  87. Class .current-menu-item in custom menu Walker
  88. Add several fields from different tables to post, fields per post are in same row of table
  89. How to cdv from a custom CMS to WP
  90. Custom folder structure and problem with 3rd party services
  91. Custom search by several options send on form not works
  92. Saving a post, content filtering and user levels
  93. Pagination is not working on custom query
  94. Issue with WordPress native theme customizer function and jquery ui tabs
  95. Complete Custom Style Part of Site
  96. add custom css on all page exept of one
  97. Custom Search Results Page
  98. Typing and seeing math equations on WordPress site
  99. removing extra mobile menu from the header
  100. Admin new order email customization