WukongPDF Blog

PDF tips, tutorials, and product updates.

Is It Legal to Unlock a Password-Protected PDF?
Unlocking a password-protected PDF sits at the intersection of practical necessity and legal nuance.
How to Send Large PDF Files Without Compressing Quality
Some PDFs are large for good reason — high-resolution images, detailed architectural drawings, print-ready marketing materials.
What Is the Difference Between a PDF and an eBook?
The term "eBook" is used loosely to mean any digital book, which leads to confusion — because a PDF can be an eBook, and many are.
Why Does My PDF Display a Blank Page at the End?
A blank page appearing at the end of a PDF is one of the more common document annoyances, and it almost always originates in the source document...
Can You Convert a PDF to PowerPoint?
Yes — but the quality of the result varies significantly depending on what's in the PDF.
How to Handle PDF Invoices Efficiently as a Small Business
Invoices are the documents most directly connected to getting paid. Handling them poorly — sending in the wrong format, losing incoming invoices,...
Why Does My PDF Have the Wrong Page Order?
Opening a PDF and finding the pages in the wrong sequence is a solvable problem, but the right fix depends on why it happened.
Can You Highlight Text in a PDF Without Acrobat?
Yes — highlighting text in a PDF is one of the most widely supported annotation features available outside of Acrobat.
PDF vs DOCX: Which Format Is Better for Long-Term Storage?
For long-term storage, PDF is the better choice in almost every case — and for documents that will be archived for decades, PDF/A is specifically...
How to Share PDF Files With Your Team Without Version Confusion
PDF version confusion is a specific problem: someone annotates an old version, someone else signs a draft that's already been superseded, two team...
Why Is My PDF Not Printing All Pages?
Sending a 20-page PDF to print and getting back 12 pages is a specific kind of frustration because nothing about the process suggested anything went...
What Is a PDF Portfolio and When Should You Use One?
A PDF portfolio is a container format that holds multiple files — PDFs, Word documents, images, spreadsheets, and other file types — inside a single...
Can You Remove Pages From a PDF Without Software?
Yes — removing pages from a PDF doesn't require any installed software. Browser-based tools handle it directly, and on Mac there's a built-in option...
How to Use PDFs in a Real Estate Transaction
Real estate transactions generate more paperwork than almost any other personal or business process — purchase agreements, inspection reports,...
Why Does My PDF Take So Long to Open?
A PDF that spins for 10 seconds before showing a page is almost always fixable.
PDF vs Word: Which Format Should You Send a Resume In?
The honest answer is PDF in almost every case — but there are specific situations where Word is correct, and getting this wrong can hurt your...
Can You Add a Page to an Existing PDF?
Yes — and it's one of the more straightforward PDF operations available. Adding pages to an existing PDF doesn't require the original source file or...
How to Work With PDF Files as a Freelancer
Freelancing generates a steady stream of PDF documents — contracts to sign, invoices to send, proposals to prepare, briefs to review, deliverables to...
Why Does My PDF Look Pixelated When I Zoom In?
A PDF that looks fine at normal zoom but turns pixelated when you zoom in is almost always an image resolution problem — either the images embedded...
What Is the Safest Way to Share a PDF Online?
"Safe" means different things depending on what you're protecting against.