: Why has the file size gone from 2MB to 12MB when making one text change to a 6 page PDF? I've been given a 6 page PDF that is 2MB in size. I need to edit one of the pages - two simple

@Turnbaugh909

Adobe Illustrator stores pdf and Illustrator pdf editing capabilities data to the file, so you can edit it back in Illustrator and other pdf editors. Yes, the file size will increase a lot. Illustrator does the same in eps and svg files.

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@Hamm6457569

In my experience, Illustrator & InDesign tend to add tons of unnecessary bloat to PDF files. After I save a PDF out of one of those programs, I open it in Acrobat and choose File > Save As Other > Optimized PDF.

The default options were mostly fine for me, but you might want to check each of the option panels to customize to your specific needs. When you're ready, hit okay, and choose where to save the optimized file. Image quality shouldn't be affected unless you tell it to do so.

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@Debbie163

Illustrator is NOT a PDF editor!!!
Unless your PDF was saved from Illustrator as an editable PDF file, you should not edit it in AI.
If edits are simple, I suggest using Acrobat Pro text editing feature.

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