Flattening a PDF means merging all interactive elements of a PDF—such as signatures, annotations, and form fields—into one static layer that can no longer be edited.
Flattening a PDF is useful when you want to:
Flatten any PDF quickly and securely with QuillBot’s free Flatten PDF tool.
PDF compression works by:
QuillBot’s Compress PDF tool is free to use and doesn’t add watermarks to your documents.
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.
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.
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.
Here’s how to rotate a PDF and save it: Upload your file, rotate selected pages, and then download the updated version to apply the changes.
If you want to make other changes to PDFs like adding text or images to your document, try QuillBot’s free PDF editor
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