: How to reduce a PDF with 80 TIFFs file size? I have an InDesign document of about 80 pages with roughly around 80 high resolution TIFFs (one for each page). The average size of each TIFF

@Gail6891361

Don't do it in Photoshop, let InDesign downsample the images for you; this way your original images remain untouched. In your PDF export options, look for the compression tab:



If you use the Press Quality, or any of the PDF-X presets you will see that the default setting is to downsample any images over 450ppi; reducing the resolution to 300ppi.

If you need to bring the file size down further you can lower the threshold to 300ppi (as shown in the image above). If you need to bring the file size down further still you can lower the image quality, or even downsample further to something like 250ppi. Lower than that and it can start to be noticeable.

Avoid saving into an RGB space: while this will reduce the file size, it may have some unpredictable affects on some of your colours.

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@Si6392903

When I bring it to a printers some printer can't even print and if they can it can take up to 20 minutes


This sounds you are talking about some simple laser print shop, not comercial offset printer (which are used to work with large files, and the process takes some days).


Should I individually resize each TIFF in photoshop?


Noooooo!

You need to understand your PDF settings.

In your PDF export dialog box, prepare one profile that works for you. You can choose JPG compression, and embed fonts, but in this case probably the most important step is to resample your images.

Choose Bicubic compression and play with 150-200 pixels per inch on the images for images above and choose the same number, 150-200.

If you have monochrome images try 600-1200.

Try RGB output, which compresses better.

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@Sent7350415

You can also try this in Acrobat and see if it meets your needs:
Go to File > Save as Other > Reduced File Size.

It may be enough to help without degrading the images or changing the original file(s).

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