Understanding PDF Quality and DPI
Not all PDFs are created equal. A PDF intended for a website requires far less data than one intended for a glossy magazine. Our PDF Quality Control tool allows you to standardize the resolution (DPI) of your documents to match their final destination.
What is DPI?
DPI stands for "Dots Per Inch." It measures the density of pixels in an image. A higher DPI means more dots packed into every inch of the document, resulting in sharper details but larger file sizes.
Choosing the Right Quality Setting
Selecting the correct DPI is crucial for balancing file size and readability:
1. 72 DPI (Screen / Web)
This is the standard resolution for computer monitors. If your PDF is only going to be viewed on phones, tablets, or laptops, 72 DPI is perfect. It keeps the file size small, ensuring fast load times on websites and quick transfers via email.
2. 150 DPI (Standard Office)
This is a "middle ground" often used for internal documents, drafts, or standard office printing on inkjet printers. It offers better clarity than 72 DPI but doesn't balloon the file size as much as 300 DPI.
3. 300 DPI (High Quality Print)
The gold standard for commercial printing. If you are submitting a document to a print shop, a publisher, or creating a brochure, 300 DPI is required. It ensures that text is crisp and images are smooth without pixelation.
Can I turn a Low-Res PDF into a High-Res PDF?
Our tool can upscale a 72 DPI PDF to 300 DPI to meet technical submission requirements for printers. However, please note that upscaling cannot add detail that wasn't in the original file. If the source PDF was blurry at 72 DPI, it will remain somewhat blurry at 300 DPI, but it will print at the correct physical size.
Privacy & Security
Like all our tools, the quality adjustment process happens 100% in your browser. Your proprietary documents are never uploaded to a server, ensuring your data remains confidential.