PDF open in Ai got extremely slow that cannot move

[boat32674]

I had my PDF file about 15MB . I opened it on Ai cc 2018 and it got extremely slow that take 5 minutes to moved or crash when moved or clicked anything.

ดาวน์โหลดไฟล์ 2017-2.compressed.pdf  <<  here is the file click on the red download button

if there is anyway to help me thanks

[Jeff Witchel, ACI · Accepted solution]

Was this PDF created and saved in Illustrator?

If not, opening PDFs that were created in other programs is not a good practice. Illustrator is not a PDF editor. In opening non-Illustrator PDFs, you may get error messages, you could also totally screw up the file.

If you need to do simple edits in a PDF, you're probably better off opening it in Acrobat Pro DC.  In the tools menu at the top of the Acrobat Window, choose Edit PDF. For more about editing PDFs, here's a video tutorial: http://www.jeffwitchel.net/2015/08/edit-pdfs-like-never-before-in-acrobat-dc/

[chrisb13277001]

If there is no option but to make edits to a PDF file in Illustrator is there any way to process it so that it runs faster? 

[Monika Gause]

What's in the PDF?

[Luke Jennings3]

Have you determined what element is causing the delay? if it's something you don't need to edit, convert it to an image, which should help. If it's a multipage PDF, extract the page in Acrobat, edit it, then place it back into the original.

Here is a related topic:

https://community.adobe.com/t5/illustrator/lot-of-tiny-drawings-slow-down-the-performance/m-p/116438...