Remove a Watermark From a PDF
A stamped logo, a "DRAFT" mark, an old company name — here is how to cover a watermark across every page of a PDF with a single drag, and what result to actually expect.
The DocImageHub Blog
Practical, no-nonsense guides for working with PDFs and images.
All
Business & E-commerce
Compression & File Size
Editing & Cleanup
File Conversion
Image Tools
PDF Tools
Product Updates
Scanning & Digitization
Security & Privacy
Shipping Label Crop
Tips & Tutorials
Compress a PDF That Mixes Text and Scanned Pages
A document with some digital pages and a few scanned attachments compresses differently to either kind on its own. Here is how to handle the mix well.
Turn a Certificate or Diploma Into a Shareable Image
A digital certificate or diploma often comes as a PDF, which is awkward to post or attach to a LinkedIn profile. Here is how to get a clean, shareable image instead.
Digitizing Old Family Photos the Right Way
Old physical photos degrade a little more every year. Here is how to scan and preserve them properly, with different priorities than a normal document scan.
Password Protection vs Encryption: What the Difference Means for a PDF
The two terms get used almost interchangeably, but they describe different things, and knowing the difference changes what you can actually promise someone about a protected file.
What Does “Lossless” Actually Mean?
PNG is described as lossless, JPG as lossy — but what does that distinction actually change about a file in practice? Here is a clear answer, without the jargon.
Convert a Logo Between Every Format You’ll Need
A single logo often needs to exist as an SVG, a PNG, a JPG and a favicon-sized icon, all at once. Here is a complete, one-stop path through every conversion.
Turn a PDF Poster or Menu Into Social-Media-Ready Images
Design tools often export a flyer or menu as a print-ready PDF, which most social platforms cannot post directly. Here is how to turn it into images people can actually see in their feed.
Merge PDFs With Different Page Sizes Without Distortion
Combining an A4 document with a Letter-sized one, or portrait with landscape, does not need to end in stretched or squashed pages. Here is what actually happens and how to keep it clean.