How to batch regenerate all thumbnails after changing the thumbnail size of Anqi CMS?

As a website manager who deeply understands the operation of Anqing CMS, I know that website content management, especially the effective use of image resources, is crucial for improving user experience and website loading speed.Thumbnail as the first impression of content presentation, its size and display method directly affect the beauty and loading efficiency of the page.When the need for adjusting or optimizing the visual design of a website arises, it is a common operation to modify the thumbnail size.This article will elaborate on how to batch regenerate all thumbnails after modifying the thumbnail size in Anqi CMS, to ensure the consistency of the visual effects of the website content and**practice**.

The necessity of adjusting thumbnail size

During the operation of the website, we may need to adjust the thumbnail size due to responsive design requirements, user experience optimization, or new visual standards.AnQi CMS provides flexible thumbnail configuration options, allowing us to set the width, height, and cropping method of thumbnails according to our actual needs.However, merely modifying the backend configuration will not automatically update the existing image thumbnails.This means that if there are tens of thousands of old contents on the website, they will still be displayed using the old thumbnail size, resulting in a lack of visual consistency on the website and affecting the user experience.Therefore, after adjusting the thumbnail settings, performing the batch regeneration operation is an indispensable step.

Modify thumbnail configuration in Anqi CMS

Firstly, we need to adjust the thumbnail size in the Anqi CMS backend management interface. This is usually done in the system's content settings.

Please log in to the AnQi CMS backend and navigate toBackend settingsand then selectContent settings.

On the "Content Settings" page, you will see various options for image processing. This includes two key configurations: "thumbnail processing method" and "thumbnail size".

The "thumbnail processing method" determines how the system processes the original image to fit the target size when generating thumbnails. Anqi CMS provides the following methods:

• Scale proportionally to the longest sideThis method maintains the original aspect ratio of the image and scales the longest side to the specified size, with the other side scaled proportionally.
• Fill the longest sideThe image will be scaled proportionally to the specified size along the longest edge, and the insufficient part will be filled with a white background.
• Trim according to the shortest edgeThe image will be cropped in the center to ensure that the shortest side completely fits the specified size, and the longest side may be cropped.

Choose the thumbnail processing method that suits your website display needs.

Next, in the 'Thumbnail Size' input box, you can set the specific width and height of the thumbnail, for example200x150Suggested to set according to the actual display requirements of the front-end page, a reasonable size can effectively reduce the image volume and improve the page loading speed.

After adjusting these dimensions and processing methods, please make sure to click the save button to apply the new configuration.

Steps to batch regenerate all thumbnails.

Once you update the thumbnail configuration, the old image thumbnails will not be updated automatically.In order to allow all uploaded content to use the new thumbnail settings, Anqi CMS provides the "Batch Regenerate Thumbnails" feature.

This feature is located where you just configuredContent settingsat the bottom of the page.

After you confirm that you have saved the new thumbnail size and processing method, you will see a name calledbatch regenerate thumbnailsThe button. Click this button, and the system will start to traverse all the images uploaded to your website, and generate new thumbnails one by one according to the new size and processing method you just set.

It should be noted that this process may take some time to complete, the specific duration depends on the number of images on your website and the performance of the server.Avoid performing other intensive operations that may affect server performance during regeneration.

After batch regeneration is complete, we recommend you visit the website's front-end page, clear the browser cache, and check if the thumbnails on different pages are displaying normally according to the new size and style.

Important considerations

Please note some important matters when performing the batch regenerate thumbnail operation:

Before performing any important system-level operations, it is strongly recommended that you perform a full backup of the website data, including the database and file system.Although regenerating thumbnails usually does not directly affect the original image file, data backup is always**a practice in case of emergency.

For websites with a large number of images, bulkly regenerating thumbnails is a resource-intensive task that may consume a lot of server CPU and IO resources in a short period of time.This may cause the website to experience a temporary slow access speed or performance degradation during regeneration.Suggest performing this operation during low traffic periods on the website.

The new thumbnail size and processing method may cause the generated thumbnail file size to change.If the new size is smaller than the old size, it may save storage space;On the contrary, it may increase storage usage.

If the thumbnail on the front end of the website does not update immediately after regeneration, this is usually due to the website cache or browser cache. You can try clearing the system cache of AnQi CMS and force refresh the browser (for example, pressCtrl+F5orShift+F5), to load the latest image resources.

By following these steps, you can efficiently and accurately manage website thumbnails in Anqi CMS, ensuring that the website content is always presented to users with **visual effects.**

Frequently Asked Questions (FAQ)

Ask: Why didn't the thumbnail on the website front-end change immediately after I modified the thumbnail size?Answer: This is usually due to the website's cache mechanism. After you modify the thumbnail size and perform the batch regeneration operation, please make sure to clear the AnQi CMS system cache.At the same time, your browser may also cache old image resources, it is recommended that you refresh the page forcibly in the browser (such as by pressingCtrl+F5orShift+F5), to load the latest thumbnail.

Ask: Will bulk regenerating thumbnails affect the access speed of my website?Answer: Yes, batch re-generating thumbnails is a resource-intensive operation, especially when the number of images on the website is large.It will occupy more server resources in a short period of time, which may cause the website's access speed to slightly decrease during the operation.Therefore, it is recommended that you choose to perform this operation during periods of low website traffic (such as late at night or early in the morning) to minimize the impact on user experience.

Ask: After I regenerate the thumbnails, I found that the new size is not suitable, can I roll back to the previous size?Answer: AnQi CMS itself does not provide a one-click rollback feature for thumbnail size.If you need to restore to the old size, you can go back to the "Content Settings" again, manually adjust the thumbnail size back to the original value, and then perform the "Batch regenerate thumbnails" operation again.That is why we emphasize the importance of backing up data before making any major changes, in case you need to manually restore some images.