Compressing high-res PDF, max.

Hi, @jeppe_klausen, Thanks for sharing the image files. I think I see (at least) some of the problems.

How were these images created? They are extremely simple, basic shapes. I believe they distorted when you placed them into your PDF because you changed the size of the image, and they were bit-mapped images (created with pixels). Because the images were so simple, it becomes more challenging for any software to play "keep and toss" as to which pixels should be eliminated. In other words, by giving them greater resolution, you sort of helped the final image, but aggravated the size issue.  Here is a better way to do this (since I do not know how you created the images, the suggestion below may be immaterial.

Resize the image in Photoshop or a Photoshop-like application. To do this, let's say you want an image to be 1" wide, and you want the resolution to be 120–140 pixels per inch. When you save that, it will be 120–140 pixels across (and whatever the height ends up). Save this as a PNG-8, which will result in a storage size of approximately 1 KB.

But again, I do not know what you are doing or how.

Hi jeppe_klausen,

Thank you for reaching out.

Please share the steps you use to export the file to PDF using InDesign. Did you create the file in InDesign or modify it?

They can be compressed up to a limit depending on the PDF size. Please try the steps once suggested in the following help document: https://adobe.ly/4kY5LuA.

Feel free to let us know if you need any help.

Thanks,

Meenakshi