My lowres pdf is 300mb, normally it should be about 10 mb max.

Forum|Forum|1 year ago
June 8, 2024
4 replies
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I want to create a PDF with the smallest file size. However, it will be 300 MB in size, while normally it is a maximum of 10 MB. I use large images, more than 600 dpi, but they should be automatically reduced in size with a low-res PDF. Is there a setting that is preventing it from working as I would expect? I already read something about downsampling, but I can't find that when I export.
Can anyone help me further?

Import and export

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danpinho

Known Participant

You placed complex AI/EPS (Transparency, Multiply, etc.)
To identify the problem, try converting them (the suspicious ones) to JPG (not ideal, I know) and save PDF again.

Hope it helps

E

Eugene Tyson

Community Expert

If a document is not behaving well then try

File>Export

Choose IDML

Open the IDML in InDesign
Save the file as a new InDesign file with a new name
See if the issue persists.

H

hanneke61Author

Known Participant

Thanks for the suggestion. I tried this but it didn't help. The PDF was the same size again. Then I created a new document and dragged all the pages into it. This also gave an equally large file.
I make a similar booklet every year, I exported last year's booklet and that worked well, it was 5 MB.
Is there anything else I can try?

H

hanneke61Author

Known Participant

You haven't really answered the basic question here: just how large are these images? "600dpi" means nothing in absolute size. What are their pixel dimensions and source file sizes? What are the layout/page sizes? And how many of them do you have in this document?

there are many images, some used several times. The absolute sizes are from 300 dp - 1800 dpi.
There are also ai images. Thera are 76 pages- size a5
But I think the effective pixelsize should not matter when I create a lowres pdf, because every image should be resized to 72 dpi. Am I wrong? And also previous year I did it the same way.

I have reduced some of the images considerably, but it remains at 295 MB.
These are the package maps from previous and from this year.

A diffence is the size of the illustrator images. I don't know why, but they are very large. This simple one for example is 25 mb: