Draft personalized letters with Formal Letter builder software

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Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
Based on 12500+ reviews
Última actualización el Dec 30, 2025

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I was extremely happy with PDFFiller until I took an entire 2 hours worth of notes on a pdf and the website froze when I tried to save it. And then lost it all with no recovery option.
Anne
The software is really good The software is really good, haven't tried the customer service yet.My only main issue is that it deals with the text as line by line and not as a block of text, and sometimes it when editing the text it makes it smaller automatically just by clicking on it.This makes it a bit harder to edit at some times but will see if it affects me much or if I can find a way around it. The rest is really well organized and efficient.
George A
Just plain user-friendly Very intuitive UX. Just easy to use that I don't even have to think about it. Normally I can see negatives with a product. Not this time however. Works great.
Dave M.
Works great for doc conversion that is… Works great for doc conversion that is QUICK & easy. Takes me no time to get it done & team loves the final products.
Jeri Shields
Super!! I am never going to read instructions so it was great how this software is intuitive and you can begin work right away. The customer service is absolutely the best I have ever encountered. Super supportive, super polite and super efficient. Would I recommend it, duh.......1000%
Dave Hamm
I have had several emergent documents sent to me in PDF-without PDF Filler I was having to print-complete form and either scan the document to my e-mail or fax to the appropriate recipients. PDF filer has saved me an astronomical amount of time :)
Dr. Denise C
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