Declaration of the National Anti-Slavery Convention was written by William Lloyd Garrison for the formation of the American Anti-Slavery Society in December 1833. It was reprinted in The Liberator on December 14, 1833. It is now available in the Public Domain.
You can also use the Optimized PDF option to crank the size down in very targeted ways. Given the big before/after shift, the culprit is probably the image you're embedding. Try exporting that file in various formats (PDF, jpg, png) and then import it.
On a Mac. Click the Finder. Browse through your computer files to find the PDF files you want to make smaller for uploads. Create a new folder to place these PDF files within. Do this by clicking File and selecting New Folder. Name the new folder to represent your PDF files.n a PC. Click the Start button and select Computer. Browse through your computer files to find the PDF files you want to make smaller for uploads. Create a new folder to place these PDF files within. Do this by clicking Organize and selecting New Folder. Name the new folder to represent your PDF files.