PDF guides
Clear instructions and explanations for everyday work with PDF documents. Each guide shows how to do something, what to watch out for and how to do it without uploading your files to someone else’s server.
How to compare two PDF files and find the changes in a contract
Received an “amended” version of a contract? See how to find every added, removed and changed word between two PDF versions in seconds.
3 min read
How to scan a document with your phone and save it as a PDF
No scanner? Take a photo of the document with your phone and turn it into a readable PDF. How to take photos that look scanned, and how to combine several pages.
3 min read
How to convert a Polish KSeF invoice (XML) to PDF and read it
Received an e-invoice from Poland’s KSeF system as an XML file? See how to turn it into a readable PDF with a QR code, what the KSeF number is and what counts as the original invoice.
4 min read
How to combine several PDF files into one document
Step by step: how to merge PDF files, set the page order and avoid uploading documents to someone else’s server. Practical tips and common problems.
4 min read
How to reduce the size of a PDF without losing readability
Is your PDF too big to e-mail? Find out what takes up the space, how to choose the compression level and when a file can’t be made any smaller.
3 min read
How to split a PDF and extract selected pages
Need only a few pages from a big document? See how to extract pages from a PDF, split a file into parts and remove unnecessary sheets.
3 min read
How to edit text in a PDF file
A typo in a finished PDF? See how to correct existing text, add new text, sign a document and fill in a form without specialist software.
4 min read
How to safely redact personal data in a PDF
A black box over an ID number is not enough. Find out how to really remove data from a PDF, how redacting differs from covering and how to search for sensitive data.
4 min read
How to protect a PDF with a password and how to unlock it
Set a password and restrict printing, editing or copying in a PDF. Learn how an open password differs from a permissions password and how to remove protection.
3 min read
How to convert a PDF to Word, Excel and other formats
Converting PDF to Word, Excel, PowerPoint and images: what to expect, how to improve the result and what to do with a scan.
3 min read
How to sign a PDF online and when such a signature is enough
A drawn, typed or image signature in a PDF: how to add it, how it differs from a qualified signature and when you need something stronger.
3 min read
How to copy text from a scanned PDF (OCR)
Can’t select text in a scanned PDF? Learn what OCR is, how to extract text from a scan or a photo of a document for free and how to get better recognition.
3 min read
How to rotate, delete and reorder pages in a PDF
A page upside down, a blank sheet after scanning or pages in the wrong order? Here’s how to permanently rotate, delete and rearrange PDF pages for free.
2 min read