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Robert McKalkin
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Full-featured documentation portal with sample code
As our blog outgrew its initial format, we decided to take it to the next level and created a full-featured documentation portal containing lots of information regarding PDF, explained with practical focus on details and accompanied by code samples includin...
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Web API for PDF processing
Introduction New development challenges continuously call for
yet another things to be done to circumvent the tricky limitations
all big name platform providers impose on us for whatever reasons.
Nevertheless we, at Apitron, believe that it just makes our s...
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PDF 2.0 specification overview
As you probably know the PDF 2.0 specification has been recently released and it introduced many long awaited features as well as deprecated some stuff. Here we would like to highlight the changes, so you could have an overview of what is going to happen in...
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Government issued smart cards and PDF documents signing
Many EU and non-EU governments and organizations are now issuing so-called e-legitimations, e.g. SuisseID / MobileID in Switzerland, BankID / MobileID / National ID in Nordic countries, ID cards in Italy and Germany, Dutch copy of BankID called iDin, Belgia...
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Apitron PDF Kit Extensions Update: Text Watermarks
Introduction   In our previous post we announced the release of the open source extensions library for Apitron PDF Kit. We continue making code contributions to this project, so recently a pack of changes related to text watermark support was added and now ...
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The open source PDF extensions.
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Open source Apitron PDF Kit extensions library
Introduction Apitron PDF Kit is an outstanding
library for all kinds of tasks related to PDF, it offers
well-designed and balanced API that follows the specification as much
as possible at the same time making your life easier by automating
many routine ope...
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Signing pdf documents with smartcards using cryptoapi or PKCS#11 cryptographic token interface
Signing with smartcards might be challenging as they usually restrict private key export and only allow signing via own custom api, integrate with existing cryptoserviceproviders (windows cryptoapi) or provide an implementation of PKCS#11 cryptographic toke...
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How to programmatically delete, edit or replace content in PDF documents
Introduction Replacing, editing or deleting content from PDF documents programmatically is not a trivial task and requires expert knowledge of the format and internal structures to be implemented from scratch. Luckily, we made it much easier for you by intr...
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Long-term validation of signatures in PDF documents or LTV enabled signatures
Long-term validation of signatures in PDF documents is a mechanism to check that the signature and all related certificates are still valid at the time of checking (opening the doc) without making any requests to the signing authorities. That is all require...
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