Si vuole impedire a WordPress di generare immagini di dimensioni aggiuntive?
Quando si effettua l’upload di un’immagine in WordPress, vengono create automaticamente diverse copie di dimensioni diverse. Temi e plugin diversi possono aumentare ulteriormente il numero di dimensioni generate. Se sul vostro sito web sono presenti molte immagini, ciò può aumentare le esigenze di archiviazione e le dimensioni del file di backup del sito.
In questo articolo vi mostreremo come impedire a WordPress di generare le dimensioni delle immagini, passo dopo passo.
Perché impedire a WordPress di generare le dimensioni delle immagini?
Quando si carica un’immagine sul proprio sito web WordPress, vengono generate automaticamente più copie dell’immagine in diverse dimensioni. Di default, le dimensioni generate sono miniatura, dimensione media e dimensione grande, oltre all’immagine originale.
I temi e i plugin di WordPress possono anche creare immagini di dimensioni aggiuntive. Potreste ritrovarvi con 5 o 10 copie di ogni immagine in dimensioni diverse.
Le diverse dimensioni delle immagini vengono generate e memorizzate durante il processo di uploader. Questo non influisce sui visitatori né rallenta il sito WordPress, ma richiede un po’ più di spazio di archiviazione.
Lo spazio extra utilizzato da queste immagini aggiuntive non è di norma un problema. La maggior parte dei fornitori di hosting WordPress offre un ampio spazio su disco, sufficiente per memorizzare migliaia di immagini.
Detto questo, alcuni utenti potrebbero voler impedire a WordPress di generare così tante immagini di dimensioni predefinite.
Ad esempio, quando gli utenti con migliaia di immagini eseguono il backup dei loro siti web, possono scoprire che il backup è diventato molto grande e richiede più tempo per essere completato. Altri utenti si accorgono di non utilizzare affatto alcune immagini e di disabilitarle per salvare spazio.
Tuttavia, bisogna essere cauti nel rimuovere le dimensioni delle immagini. Potrebbero essere necessarie al tema per le immagini in evidenza, i cursori, gli allegati o i tipi di contenuto personalizzati. Rimuovetele solo se siete certi e consapevoli dell’effetto che potrebbe avere sul vostro sito.
Detto questo, vediamo come impedire a WordPress di generare le dimensioni delle immagini.
Come impedire a WordPress di generare le dimensioni delle immagini
Innanzitutto, è necessario installare e attivare il plugin ThumbPress Stop Generating Unnecessary Thumbnails. Se avete bisogno di aiuto, potete consultare la nostra guida per principianti su come installare un plugin di WordPress.
Dopo l’attivazione, è possibile regolare le impostazioni dei media accedendo alla pagina Media ” Dimensioni immagine nella dashboard di WordPress e disabilitando le dimensioni delle immagini.
A questo punto, si noterà che tutte le dimensioni supplementari delle immagini sono elencate sulla sinistra dello schermo. Quelle contrassegnate in rosso indicano che queste dimensioni sono abilitate e verranno generate.
È necessario trascinare ogni dimensione che non si desidera nella colonna di destra. In questo modo verrà disabilitata in modo che non venga generata quando si carica un’immagine.
Ad esempio, si può scegliere di eliminare tutte le dimensioni delle miniature.
Una volta trascinate le dimensioni di ciascuna immagine verso destra, queste verranno visualizzate in verde. In alto sullo schermo apparirà una notifica che indica che “verranno generate 0 miniature”.
Fate clic sul pulsante “Salva impostazioni” per attivare le nuove impostazioni. Ora, quando caricate nuove immagini sul vostro blog WordPress, non verranno generate dimensioni extra.
Tuttavia, le immagini caricate in passato continueranno ad avere tutte le dimensioni aggiuntive. Vediamo come rimuovere le dimensioni delle immagini inutilizzate in WordPress.
È sufficiente fare clic sulla scheda “Rigenerazione” e poi sul pulsante “Rigenerazione”.
Tutte le immagini aggiuntive verranno eliminate dalla libreria dei media. L’operazione verrà eseguita in lotti di 50 per evitare di sovraccaricare il server.
Congratulazioni, avete rimosso tutte le immagini aggiuntive dal vostro sito e impedito a WordPress di generarle in futuro.
Bonus: disabilitare le pagine dell’allegato in WordPress
Oltre a rimuovere le diverse dimensioni delle immagini, potreste anche disabilitare le pagine dell’allegato sul vostro sito web.
Per impostazione predefinita, WordPress crea una singola pagina dell’allegato media sul sito, comprese immagini, file audio e video. Queste pagine mostrano solo l’immagine stessa senza alcun testo o contenuto, il che può lasciare una cattiva impressione sugli utenti.
Inoltre, può danneggiare la SEO del sito perché i motori di ricerca apprezzano i contenuti di alta qualità e le pagine dell’allegato mancano di contesto. In questo caso, sarà bene disabilitare le pagine dell’allegato sul vostro sito web.
Potete farlo facilmente con All in One SEO per WordPress, che è il miglior strumento SEO sul mercato.
È sufficiente installare il plugin e visitare la pagina All in One SEO ” Aspetto della ricerca dalla Bacheca di WordPress.
Passare alla scheda “Image SEO” e selezionare l’opzione “Attachment Parent” nella sezione “Redirect Attachment URLs”. Ora, quando un utente approda alla pagina dell’allegato, sarà reindirizzato al vostro articolo del blog.
Una volta terminato, non dimenticate di fare clic sul pulsante “Salva modifiche” per salvare le impostazioni. Per istruzioni dettagliate, consultate il nostro tutorial su come disabilitare le pagine dell’allegato in WordPress.
Potete utilizzare AIOSEO anche per le sitemap XML, l’assistente alla scrittura, il SEO per immagini, l’assistente per i collegamenti interrotti, le meta descrizioni AI e molto altro ancora.
Per maggiori dettagli, consultate la nostra recensione completa di All in One SEO.
Ci auguriamo che questo tutorial vi abbia aiutato a imparare come impedire a WordPress di generare le dimensioni delle immagini. Potreste anche consultare i nostri tutorial su come creare una landing page con WordPress e le nostre scelte degli esperti sui migliori plugin per la compressione delle immagini di WordPress.
Se questo articolo vi è piaciuto, iscrivetevi al nostro canale YouTube per le esercitazioni video su WordPress. Potete trovarci anche su Twitter e Facebook.
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Daphne says
Thank you! I transitioned a site over to Divi, then added several galleries. Was blown away buy the file storage glut. This easy solution brought the total storage down to something managable.
WPBeginner Support says
Glad we help keep your media library a manageable size
Admin
Jenn Summers says
Hi, today I changed all my settings to 0 like shown in your instructions above. I uploaded a new picture and when I attempted to resize in side bar all I have for options is full size (which is too big) and shareaholic from another plugin in my site. I tried setting back to default settings. And it didn’t change still same two options. Any idea how I can fix this?
WPBeginner Support says
If the plugin was already uploaded, you would want to use the regenerate thumbnails plugin for creating a the returned image sizes. We have a guide on how to use it here: https://www.wpbeginner.com/plugins/regenerate-thumbnails-new-image-sizes-wordpress/
Admin
javidan says
HI
how to prevent WP to generate variety image size for all images?
in a single post we have 6-7 image and wp will generate 3 size for all of them that not be used except thumbnail
and another question is make gallery but google crawl that page of that single image why?
Scott says
Does not work. You have to modify the functions.php flle. This is one of the most irritating thing WP does. You should be prompted to create multiples sizes after uploading files. It should not be assumed. Bad bad…
Amit says
Hello,
I have a running image sharing website, usually, we insert more than 20 images in a single post. I want to prevent WordPress from generating different image sizes for inserted images, except for the post featured image.
For example, If there are 20 images in my post. I want WP to generate image sizes for the Featured image only, and for other inserted images i don’t want different sizes.
Actually, the problem is the limited storage space and the other problem is that with those useless image sizes the backup file has more size.
How can I achieve this?
I appreciate your help.
Lalit says
Please @WPbeginner provided any solution for this query. I am also looking for an answer.
WPBeginner Support says
Hi Lalit and Amit,
Unfortunately, this is not as straightforward. Your WordPress theme may have defined its own image sizes, some times WordPress plugins may also define new image sizes. First you will need to figure out the sizes you don’t want to use anymore. This may result in unexpected behavior from your theme and or plugin. You will need to know the name used by the theme or plugin to remove the image size.
add_action('init', 'remove_plugin_image_sizes'); function remove_plugin_image_sizes() { remove_image_size('image-size-name'); }1-click Use in WordPress
Another alternate could be using a plugin like “Optimize Images Resizing”, which stops generating image sizes upon upload and only creates a new image size when you select that size to insert in the post.
Admin
Lalit says
Thank you so much for the response.
Yash Gautam says
If i stop this from media settings, like set all to 0. is this make any effect on Responsive functionality ?
Mohamed Abdel-Hady says
Great article, but I have a question
When I hired a developer to do my WP website, he sat the 3 default image sizes to some numbers which always made my gallery images to look pixelated when clicked on and enlarged inspite of using WP retina 2x plugin to make all my images look “retina-quality”, so I sat those sizes to zeroes and tried re-uploading an image and baam, it looks super sharp, however, my subheader images never look as sharp or crisp …. DOES ANYONE KNOW WHY? IT’S DRIVING ME NUTS!!!
Xuan hoa says
And i dont want save original image, how i can do it ? thanks
Steve Woods says
I am using Suffusion theme and beside the three native sizes of 200×200, 300×225, 400×300, I am also getting 96×96, 128×128, 128×72 and 480×360. That’s seven sizes!
The problem is that all these different sizes may be seen by Google as duplication. That seems to hold water because only a small fraction of my images are being indexed.
Is there a setting I am missing or plugin that can fix and clean this mess up?
TIA
WPBeginner Support says
We feel that Google understands that your site may host several smaller or larger versions of an image. It is not duplicate content.
Admin
Duncan says
I want to be able to click on an image in my blog to open it as an enlarged version in a separate pop-up window. How?
Amit Kr Sharma says
Hello,
i have a running image sharing website , usually we insert more then 20 images in a single post. I want to prevent WordPress from generating different image sizes for inserted images, except for the post featured image.
For example If there’s 20 images in my post. I want WP to generate image sizes for the Featured image only, and for other inserted images i don’t want different sizes.
Actually the problem is the limited storage space and the other problem is that with those useless image sizes the backup file has more size.
How can I achieve this ?
I appreciate your help.
Jefferson says
It helped me a lot! Thank you very much!
ITWEBMOB says
But still one major issue , Stop use thumbnail native image
I want Use cache image thumbnail inserted of native image, its create junk on web-space
e.g If I upload one product its make 3-6 thumbnail image from original picture.
How can I use Cache images system e.g. megento, prestashop, opencart with easy one click all cache clear option
note: use spl folder location for store cache images not wp-content/2015/12/
pavlo says
Very helpful article, I found what generates 88×88 thumbnails in functions.php of my theme! thanks a lot!
Marius says
Thanks for the article. More than a year later it’s still useful! I just managed to change my theme to stop creating potentially thousands of variants of images I intend to have in WordPress galleries. However, what I did was
(1) to comment out the add_image_size( ‘square100’, 100, 100, true ) as suggested, and
(2) to replace the parameters to the_post_thumbnail call (see WP Codex) with an array e g
the_post_thumbnail(‘square100’) became the_post_thumbnail( array(100,100)).
This stopped the unnecessary creation of variants for every image loaded.
To do this I had to override various functions and files in the theme by using a child theme, which is a whole subject on its own, and not to be attempted if you don’t have good knowledge of how child themes work!
Nicolas says
Hi do you happen to know how to unregister
add_image_size
set_post_thumbnail_size?
While removing the line works i wouldn’t like to modify the theme and unregister on my child theme, so i don’t have to remember to do it again every time the theme updates.
Thank you.
Jay says
I just read this and my theme and wordpress combined is generating 25 copies of each photo! I use a lot of photos on my site, the big question is how do we know which ones we can erase, i think three sizes is more then enough, but 25 sizes!
Any thoughts WPBeginner!
subhojti says
thank you
Jens Brogaard says
Hi there, I think you’ve overlooked a way to decrease the number of generated image sizes;
First, as you mention, get an overview of image settings in WP, theme and perhaps plugins – jot them down, px by px.
Secondly, decide what is needed according to your visual needs. Often there’s small differences in e.g. thumbnail size but you can do with just one global size.
Then lastly, align as much as possible, i.e. keep all the image settings but try to set as few variations as possible.
I’n not in favor of messing around with the code since too often something will break down the road but this is just good practice of knowing what you want
Mitchell says
Jens, would you mind private messaging me? I’m having a heck of time trying to reduce the amount of images on my site. My host is going to shut it down.
mcal2005@gmail.com
Much appreciated!
greg taylor says
Is there a computer–mac- windows-or chrome book, etc that lends itself to easier/better writing a wp blog—.com, not org? any overall ease of use for a newbie, like me?
any thoughts on above appreciated.—greg —ww2–disabled vet
Christian Zumbrunnen says
There is a plugin called “Regenarete Thumbnails” (and another one “Force Regenerate Thumbnails”) which will resize existing images according to the new configuration. At least the second one promises to also delete the old resized images.
Himanshu Goel says
I want to keep the thumbnails and rest I want to ignore, so, I will change only other 2 options than Thumbnail and If this will work…
Really, That will be helpful guys…!
WPBeginner Support says
Yes that would work.
Admin
Christian says
Thanks for the interesting article !
You mention the “uploads” folder but there is also the: /wp-content/uploads/et_temp folder which in my case is also full of copies of images. Can you shed some light on the purpose of this particular folder. I am using a “Elegant Theme” called Envisioned.
Thanks & Cheers,
CF
WPBeginner Support says
Seems like your theme or may be a plugin is responsible for adding images into this folder. Unfortunately, we can not specifically provide help with individual theme and plugin settings. You will need to contact your theme or plugin support and ask them how you can prevent this.
Admin
Mike says
FANTASTIC article. Now I just need to figure out how to delete the unneeded images that have already been generated, without deleting the ones I need.
sachin says
thank you so much for posting this. i have very tensed about disk space and inodes now i can feel some relief thank you very much….
Karen H. says
Thanks for another useful article. I’m just wondering whether removing the various image sizes would have an adverse effect on mobile/responsive WP sites. Don’t we need those sizes so the images can adjust to various screen sizes and orientations?
WPBeginner Support says
Not always true. Many themes use jQuery and css to make your images responsive.
Admin