PDF Software - Digital Certificate Online Grátis

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Última actualização em Jan 22, 2026

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Every PDF tool you need to get documents
done paper-free

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Create & edit PDFs

Generate new PDFs from scratch or transform existing documents into reusable templates. Type anywhere on a PDF, rewrite original PDF content, insert images or graphics, redact sensitive details, and highlight important information using an intuitive online editor.
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Fill out & sign PDF forms

Say goodbye to error-prone manual hassles. Complete any PDF document electronically – even while on the go. Pre-fill multiple PDFs simultaneously or extract responses from completed forms with ease.
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Organize & convert PDFs

Add, remove, or rearrange pages inside your PDFs in seconds. Create new documents by merging or splitting PDFs. Instantly convert edited files to various formats when you download or export them.
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Collect data and approvals

Transform static documents into interactive fillable forms by dragging and dropping various types of fillable fields on your PDFs. Publish these forms on websites or share them via a direct link to capture data, collect signatures, and request payments.
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Export documents with ease

Share, email, print, fax, or download edited documents in just a few clicks. Quickly export and import documents from popular cloud storage services like Google Drive, Box, and Dropbox.
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Store documents safely

Store an unlimited number of documents and templates securely in the cloud and access them from any location or device. Add an extra level of protection to documents by locking them with a password, placing them in encrypted folders, or requesting user authentication.

Customer trust by the numbers

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4.6/5
average user rating
4M
PDFs edited per month
9 min
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Join 64+ million people using paperless workflows to drive productivity and cut costs

Why choose our PDF solution?

Cloud-native PDF editor

Access powerful PDF tools, as well as your documents and templates, from anywhere. No installation needed.

Top-rated for ease of use

Create, edit, and fill out PDF documents faster with an intuitive UI that only takes minutes to master.

Industry-leading customer service

Enjoy peace of mind with an award-winning customer support team always within reach.

What our customers say about pdfFiller

See for yourself by reading reviews on the most popular resources:
I wanted to be able to duplicate a filled form and make a couple of changes. Then save with a new name. I did download and rename before I did this. glad I did. PdfFiller overwrote the file. All is well since I downloaded the original.
Anne R
2015-11-21
What do you like best?
It offered me a complete fillable PDF forms using data from spreadsheets in a matter of minutes. It Kept all of my completed forms secure and organized in one folder and I could easily access them anytime from its desktop software or its mobile application. PDFfiller’s add-on for Google Spreadsheets spared me tons of time I would use filling out multiple forms with data from my Google Sheets by hand. PDFfiller instead allowed me to automate the entire process by quickly merging data collected from the spreadsheet’s cells with fillable fields in the forms. It also helped me to easily share completed forms with my teammates and colleagues directly from it instead of having to download and share on various platforms separately.
What do you dislike?
It's a bit slow and too many requirements to return to the dashboard to make a new order or start over. It's a little difficult to use and I didn't really find the editor interference convenient at all. Also if you're using it online you should have a medium to fast internet connection as it works terribly with slow connections and lags a lot.
Recommendations to others considering the product:
It helps you export spreadsheets into PDFs in secs and saves you all the effort and time you'd have to go through if you tried to do it manually. I totally recommend it.
What problems are you solving with the product? What benefits have you realized?
I personally use a lot and to solve many issues I go through with spreadsheets. I deal and work with spreadsheets very often be it for registration of events we organize in ASCE student chapter or for our technical work in construction filling in dimensions, quantities and/or areas. I would always face this problem when I have to export the spreadsheet in a PDF format as every time the pdf file ends up being incomplete and I lose a lot of my spreadsheet data because the spreadsheet has no size restriction as in PDF; Landscape A3 or Letter A4 sizes and even if it put all of the spreadsheet content in the PDF, the font size is becomes very small and unreadable. So I used this software ad ever since It became really super easy to export sheets into PDFs without losing any data and only with a few clicks.
User in Civil Engineering
2018-06-07
the experience was mostly good, however, when coming from a google doc and putting the document here to convert into a pdf, the drop down tabs that were originally in the google doc did not work- in that way, it was tedious.
Anonymous Customer
2023-10-12
I LOVE pdfFiller!!! I LOVE pdfFiller!!!! However it would be better if I could have a shortcut icon on my Desktop... it would make my life soooooo much easier. I need this ability from pdfFiller. I mean at $100 a year for this ? i think its not much to ask for.really. my email is bbig4e@yahoo. reach out and tell me how to do it.
M.Merenda
2021-11-29
What do you like best? It has been the most useful piece of software I have for finding and applying for jobs: creating CV's and editable job applications very decent mobile app as well after the shock of being scammed by Adobe I hunted far and wide for a solution: PDF filler is it Thank you What do you dislike? Text input is clunky but effective but I can live with it What problems are you solving with the product? What benefits have you realized? For forms and applications that can be completed with mobile app means I can give lighting fast responses to job offers and other essential correspondence like applying for citizenship, legal and financial documents
simon bird
2020-08-30
Elisa stepped right into action and helped me with my accounting issue. It is so nice to be able to have an account services individual help a customer with ease. This is a very rare occasion especially during this pandemic. Thank you Elisa!!!!!
Neysa C
2020-08-14

PDF Software - Digital Certificate Feature

Enhance your digital document security with our PDF Software's Digital Certificate feature. This tool allows you to sign, verify, and secure your PDF files with ease. Whether for personal use or business, it provides peace of mind by ensuring the authenticity of your documents.

Key Features

Digital signatures for secure authentication
Easy verification process for recipients
Integration with multiple PDF formats
User-friendly interface for quick access
Compliance with industry standards

Potential Use Cases and Benefits

Signing contracts and agreements securely
Authenticating official documents for legal purposes
Sharing sensitive information with confidence
Managing approvals in corporate environments
Enhancing trust in digital communications

The Digital Certificate feature solves your concern over document integrity. By using this feature, you can prevent unauthorized changes to your PDF files. In addition, it gives recipients reassurance that the documents have not been tampered with. Embrace this solution to protect your work and boost your credibility in a digital world.

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Create, edit, and share PDFs even on the go. The pdfFiller app equips you with every tool you need to manage documents on your mobile device. Try it now on iOS or Android!

For pdfFiller’s FAQs

Below is a list of the most common customer questions. If you can’t find an answer to your question, please don’t hesitate to reach out to us.
What if I have more questions?
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Suggested clip How to Sign a PDF with a Document Signing Certificate — YouTubeYouTubeStart of suggested client of suggested clip How to Sign a PDF with a Document Signing Certificate — YouTube
Digital certificates are electronic credentials that bind the identity of the certificate owner to a pair of electronic encryption keys, (one public and one private), that can be used to encrypt and sign information digitally.
A certificate stores the public key component of a digital ID. For more information about digital IDs, see Digital IDs. When you secure a PDF using a certificate, you specify the recipients and define the file access level for each recipient or group.
On the Protect tab, in the Certify Document group, click Certify. On the Certify Profile Wizard, choose the actions you want to permit from the Permitted actions list. Click Next. Select a digital ID to certify with, and choose whether to make the certificate visible. Click Next.
An electronic signature, on the other hand, is merely an image of your signature overlaid on top of a PDF document. You can do it with all kinds of apps, and it's what most people will require when they send you a document to sign. Send them a PDF file with a digital signature, and they won't know what to make of it.

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