PaperStack Blog

Fix sideways or upside-down pages in seconds — plus how to rotate just one page in a multi-page file.

Lock a PDF before sharing it — plus what a password actually protects against, and what it doesn't.

Remove a password from a file you own — and what to do if you've forgotten it.

Stamp text or a logo across your pages — plus tips on opacity and placement that actually look intentional.

Number every page automatically — plus where to place numbers for reports, theses, and contracts.

Loan, visa, and rental applications almost always ask for bank statements as a PDF — here's how to handle screenshots, multiple months, and locked files.

Add a signature to a lease, contract, or form without printing or scanning — plus when a basic e-signature isn't enough.

Turn a PDF into an editable Word document — what converts cleanly, what doesn't, and how to fix it.

An honest, no-fluff comparison of PaperStack vs iLovePDF, Smallpdf, Adobe Acrobat, and PDF24 — daily limits, privacy, and what each tool is actually good for.

Combine multiple PDFs into one file in seconds — step-by-step, plus the small details that trip people up.

Convert phone photos, scanned receipts, or ID cards into a single clean PDF — plus tips for a sharper-looking scan.

A step-by-step walkthrough of combining PDF files using PaperStack's Split tool — plus answers to common questions and problems.

Why PDFs get bloated, real email attachment size limits, and how to compress without losing readability.

A plain-language look at copyright, e-signature validity, and your privacy rights when using free PDF tools.

Most PDF tools upload your file to a server. We don't — here's exactly why, and how to verify it yourself.