Guides2 min read
How to merge PDF files without uploading them anywhere
Combine contracts, scans and reports into a single PDF in seconds — directly in your browser, with full control over page order.
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Blog
Guides, tips and behind-the-scenes on working with PDF documents.
Guides3 min read
How to reduce a PDF's file size (and why some files won't shrink)
What actually makes PDFs big, how the three compression levels work, and how to choose the right one for email, web or print.
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Security3 min read
PDF passwords and permissions, explained
Open passwords, owner passwords, AES-256 and permission flags — what each one protects, what it doesn't, and how to use them properly.
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Guides2 min read
Make a scanned PDF searchable with OCR
Turn photographed or scanned pages into text you can search, copy and convert — and get the best accuracy from Tesseract.
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Security3 min read
Electronic signature vs. digital signature — which one do you need?
A drawn signature on a PDF and a certificate-backed digital signature are not the same thing. Here is what each one proves, and when a simple e-signature is enough.
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Tips & tricks3 min read
Converting PDF to Word: what converts well, what doesn't, and how to fix it
PDF and Word describe documents in fundamentally different ways. Knowing where conversion struggles saves you from fighting a mangled layout.
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