WukongPDF Blog

PDF tips, tutorials, and product updates.

How to Compress a PDF to Under 1MB
Getting a PDF under 1MB is straightforward for text-heavy documents and more challenging for image-heavy ones.
Why Does My PDF Look Blurry When I Print It?
A PDF that looks fine on screen but comes out blurry from the printer has a resolution problem — either the images in the document don't have enough...
How to Convert PDF to Word on Mac for Free
Mac doesn't include a built-in PDF-to-Word converter, but there are solid free options available that don't require installing anything.
What Is the Easiest Way to Sign a PDF?
For most people, the easiest way to sign a PDF is through a browser tool — open the website, upload the document, click where your signature goes,...
How to Split a Large PDF Into Smaller Files
Splitting a large PDF usually comes down to one of two situations: the file is too big to email or upload somewhere, or you need to distribute...
Can You Edit a Scanned PDF?
Editing a scanned PDF is more involved than editing a regular PDF, but it's not impossible.
How to Convert PDF to Excel for Free
Pulling data out of a PDF into Excel is something people need to do surprisingly often — bank statements, financial reports, tables from documents...
Why Won't My PDF Open on My Phone?
A PDF that opens fine on a computer but refuses to open on a phone — or shows an error, a blank screen, or crashes the app — is one of those...
How to Reduce PDF Size Without Losing Quality on iPhone
Reducing PDF file size on iPhone without sacrificing quality comes down to using the right compression settings.
Can You Edit Text in a PDF for Free?
Editing text in a PDF for free is possible, but the experience depends heavily on what you mean by "edit text" and which approach you take.
How to Remove a Page From a PDF on Mac
Removing a page from a PDF on Mac is a two-minute job using Preview, which is already installed on every Mac.
What Is the Best Free PDF Editor?
The best free PDF editor depends on what you mean by "editing." For annotations and form filling, several tools are genuinely free and...
How to Convert JPG to PDF on iPhone
iPhone has built-in ways to convert photos to PDF without downloading any app.
Can You Unlock a Password-Protected PDF?
There are two very different types of PDF password protection, and whether you can remove one depends on which type it is — and whether you know the...
How to Merge PDF Files on Mac for Free
Mac has a completely free built-in method for merging PDFs that most people don't know about — it's been in Preview for years.
Why Is My PDF File So Large After Scanning?
A scanned PDF that's 80MB for five pages of text is a common frustration. Scanning creates image files, not text files, and images — especially...
Can You Convert a PDF to Word Without Losing Formatting?
The honest answer: mostly yes, with caveats. For straightforward text documents, the formatting holds up well.
How to Make a PDF Smaller on Mac
Mac users have three distinct ways to reduce PDF file size — one built directly into the operating system, one through the browser, and one through...
What Is the Difference Between PDF Annotation and PDF Editing?
Annotation and editing are the two main ways to modify a PDF, and they work completely differently.
Can You Print a PDF as a Booklet?
Yes — printing a PDF as a booklet arranges pages so that when you fold the printed sheets, they read in the correct order.