Ways to improve security when you send the password for a PDF include:
Choosing a strong, unique password that you don’t reuse elsewhere when password protecting the PDF with a free online tool like Quillbot’s Protect PDF tool.
Yes. Adding password protection with a “document open” password using a tool like Quillbot’s Protect PDF encrypts the PDF.
However, if you only set a “permissions password” to restrict copying or printing, people will still be able to open and read the PDF.
A potential disadvantage of compressing a PDF is poor image quality. If the compression is too strong, photos, charts, or scanned pages may look blurry, and the resolution may be too low for high-quality printing.
If image quality is very important for your project, keep a copy of the original PDF until you’ve checked that the quality is good enough for your purposes.
With Quillbot’s free Compress PDF tool, you have a choice of compression strengths.
PDF compression works by:
Quillbot’s Compress PDF tool is free to use and doesn’t add watermarks to your documents.
You can remove PDF password protection from a file you own by uploading it to a tool like Quillbot’s free online Unlock PDF.
Just upload the locked PDF, enter its password, and download the unlocked version.
