WukongPDF Blog

PDF tips, tutorials, and product updates.

How to Keep PDF File Size Small When Scanning Documents
Scanned PDFs are almost always larger than they need to be. The file size comes entirely from the images the scanner captures, and most scanners...
PDF vs TIFF: Which Format Is Better for Scanned Documents?
Both PDF and TIFF are used for scanned documents, and both can preserve image quality well.
Why Does My PDF Print Smaller Than Expected?
You print a document and the output is noticeably smaller than the page — a narrow band of content centered in white space, or text that looks right...
How to Handle PDF Files in a Hiring Process
Hiring involves a lot of documents moving between a lot of people — resumes, cover letters, job descriptions, interview scorecards, offer letters,...
Can You Password Protect a PDF on Mac for Free?
Yes — and Mac users have an advantage here because the operating system includes a built-in way to do it without any additional software.
What Is the Difference Between PDF and PDF/A?
PDF/A is a version of PDF built for long-term archiving. The "A" stands for archival.
How to Prepare Architecture Drawings as PDF
Architecture drawings have stricter PDF requirements than almost any other document type. Dimension annotations need to remain legible at print scale.
Why Does My PDF Look Different on Different Devices?
PDF was designed to look the same everywhere — that's the whole point of the format.
Can You Merge PDFs on a Chromebook?
Yes — and it's actually easier on a Chromebook than most people expect. Chromebooks don't run traditional desktop software, but that's not a problem...
How to Make a Resume PDF Look Professional
A resume that looks great in Google Docs or Word can come out looking wrong as a PDF — fonts substitute, spacing shifts, margins narrow, and the...
Why Can't I Copy Text From My PDF?
There are three completely different reasons why text won't copy from a PDF, and each one has a different fix.
What Is the Best Way to Compress a PDF Without Losing Quality?
The short answer: use a tool that compresses different types of content differently, and work from the original file.
How to Manage PDF Contracts Without Adobe
A lot of businesses pay for Adobe Acrobat mainly because they handle contracts and think they need it.
Can You Fill Out a PDF Form on iPhone?
Yes — and depending on what kind of form it is, you might not need any app at all. iPhones handle PDF forms better than most people expect.
Why Is My Scanned PDF So Large?
A scanned PDF of a five-page letter shouldn't be 80MB. But it often is, and the reason almost always comes down to how the scan was set up rather...
PDF vs Google Docs: Which Should You Use for Business?
The choice between PDF and Google Docs isn't really about which format is better — it's about what you're trying to do with the document.
How to Prepare a PDF for Legal Submission
Submitting a PDF to a court, government agency, or legal counterparty isn't the same as emailing a document to a colleague.
Can You Edit a PDF Without Adobe Acrobat?
Adobe Acrobat has been the default answer to PDF editing for a long time, but it costs $20+ a month and most people only need it occasionally.
What Is PDF/A-3 and When Should You Use It?
PDF/A-3 is the most flexible variant of the PDF/A archiving standard. While earlier PDF/A versions focused purely on making PDFs self-contained and...
What Is PDF/UA and Who Needs to Follow It?
PDF/UA — where UA stands for Universal Accessibility — is the ISO standard (ISO 14289) that defines what a fully accessible PDF looks like.