Title: PDF Thumbnail Preview Last modified: August 30, 2016 --- # PDF Thumbnail Preview * Resolved [hyemin93](https://wordpress.org/support/users/hyemin93/) * (@hyemin93) * [11 years, 2 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/) * Hello. * I have a quick question to generate PDF thumbnail image. As you can see in the below link, all of PDF thumbnail images look same. * [http://192.168.10.111/wordpress/furninova-product-images](http://192.168.10.111/wordpress/furninova-product-images) * How can I make each thumbnail as “first page preview”of each pdf file? * Thanks, Hyemin * [https://wordpress.org/plugins/document-gallery/](https://wordpress.org/plugins/document-gallery/) Viewing 9 replies - 1 through 9 (of 9 total) * Plugin Author [Dan Rossiter](https://wordpress.org/support/users/danrossiter/) * (@danrossiter) * [11 years, 2 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6246756) * Hi Hyemin, * In order to have PDF previews, you either need [Ghostscript](http://ghostscript.com/) installed or you need the [Imagick PHP extension](http://php.net/manual/en/imagick.setup.php) installed. The latter may or may not handle PDFs depending how it’s installed. * If you go the ghostscript route, once it’s installed, you’ll need to set the Ghostscript executable path at `Dashboard -> Settings -> Document Gallery -> Advanced`, then enable the thumbnail generation method at the bottom of General tab. * -Dan * PS: If you’ve found this plugin useful, please take a moment to [rate it](http://wordpress.org/support/view/plugin-reviews/document-gallery#postform). Thanks! 🙂 * [kennpenn](https://wordpress.org/support/users/kennpenn/) * (@kennpenn) * [10 years, 10 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6247021) * The last 4 documents that I have uploaded display only a standard pdf icon image and not a “fancy” thumbnail. None of the settings have changed since the initial upload of documents from about a month ago. Ref URL: [http://chamberrx.com](http://chamberrx.com), scroll down to Print Card * Plugin Author [Dan Rossiter](https://wordpress.org/support/users/danrossiter/) * (@danrossiter) * [10 years, 10 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6247022) * Hi Kennpenn, * I do see a few thumbnails with the default PDF icon, though it’s not the last 4… That shouldn’t matter for your question though. * Some PDFs simply fail to process due to the underlying software being used to perform the conversions. Can you tell me what thumbnail generation methods you are using? Ghostscript? IMagick? * Additionally, if you navigate to `Dashboard -> Settings -> Document Gallery - >Advanced` and enable logging, then go to the `Thumbnail Management` tab and delete the thumbnails for the attachments where generation failed, then finally go back to the gallery and re-generate, do you get any warning or error messages logged? * -Dan * [enluminures](https://wordpress.org/support/users/enluminures/) * (@enluminures) * [10 years, 9 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6247023) * Hello, we need your help to configure your download page with your extension “ Documet Gallery”. Indeed no thumbnail (image of document) will appear. Only one is visible generic pdf icon appears. Yet we configure this option in the settings. Moreover our files appear under each other. Could not be online on the page. Do you have the solution to our problems. Thank you in advance. Best regards * [enluminures](https://wordpress.org/support/users/enluminures/) * (@enluminures) * [10 years, 9 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6247024) * Hello, we need your help to configure your download page with your extension “ Documet Gallery”. Indeed no thumbnail (image of document) will appear. Only one is visible generic pdf icon appears. Yet we configure this option in the settings. Moreover our files appear under each other. Could not be online on the page. Do you have the solution to our problems. Thank you in advance. Best regards * Plugin Author [Dan Rossiter](https://wordpress.org/support/users/danrossiter/) * (@danrossiter) * [10 years, 9 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6247025) * Hi enluminures, * Regarding your files appearing under each other, it sounds like you either have the `columns` attribute set to 1 or you have the `descriptions` attribute enabled— it is most likely the latter, in which case you need to do this `[dg descriptions =false]` (or update the default settings under `Dashboard -> Settings -> Document Gallery`. * Regarding getting just the default thumbnails, which thumbnail generators do you currently have enabled (which checkboxes are checked at the bottom of `Dashboard- > Settings ->Document Gallery`)? You would need Ghostscript or (less reliable) IMagick enabled in order for Document Gallery to be able to process PDF files and generate a thumbnail. * -Dan * [sigvevidnes](https://wordpress.org/support/users/sigvevidnes/) * (@sigvevidnes) * [10 years, 4 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6247045) * Hi, * I had the same problem with missing PDF thumbnails on my site (the problem occured approx. December 2015), and none of the above solved my issue – although I never got to check out which Ghostscript version is installed on the server. * Anyway, I accidentally stumbled upon the (or a) solution, which is that the PDF file names must be written without spaces. As soon as replaced spaces with f. ex. hyphens, a thumbnail was successfully generated for each and every PDF file. * Plugin Author [Dan Rossiter](https://wordpress.org/support/users/danrossiter/) * (@danrossiter) * [10 years, 4 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6247046) * Wow! Good catch. * That is indeed a bug. We just pushed out version `4.2.2` of DG which should address this. * Out of curiosity, how did you manage to get an attachment into WP that had spaces in the filename? Default WP media upload behavior replaces spaces with dashes so you would have had to go through some other means. I was able to test the issue by mucking with the DB, but I’m guessing you weren’t doing that. * -Dan * [sigvevidnes](https://wordpress.org/support/users/sigvevidnes/) * (@sigvevidnes) * [10 years, 4 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6247047) * Hi, Dan, * You’re right, I didn’t get the attachments into my site through the default WP media upload. I always prefer uploading via fileZilla – because it’s closer to how I’m used to copy/move documents on my laptop, and because fileZilla never asks any questions regarding file sizes etc. * Thanks for the update – installed! * Sigve Viewing 9 replies - 1 through 9 (of 9 total) The topic ‘PDF Thumbnail Preview’ is closed to new replies. * ![](https://ps.w.org/document-gallery/assets/icon.svg?rev=983329) * [Document Gallery](https://wordpress.org/plugins/document-gallery/) * [Frequently Asked Questions](https://wordpress.org/plugins/document-gallery/#faq) * [Support Threads](https://wordpress.org/support/plugin/document-gallery/) * [Active Topics](https://wordpress.org/support/plugin/document-gallery/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/document-gallery/unresolved/) * [Reviews](https://wordpress.org/support/plugin/document-gallery/reviews/) * 9 replies * 5 participants * Last reply from: [sigvevidnes](https://wordpress.org/support/users/sigvevidnes/) * Last activity: [10 years, 4 months ago](https://wordpress.org/support/topic/pdf-thumbnail-preview/#post-6247047) * Status: resolved