Up to 100 MB for PDF and up to 25 MB for DOC, DOCX, RTF, PPT, PPTX, JPEG, PNG, JFIF, XLS, XLSX or TXT
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Edit, manage, and save documents in your preferred format
Convert documents with ease
Convert text documents (.docx), spreadsheets (.xlsx), images (.jpeg), and presentations (.pptx) into editable PDFs (.pdf) and vice versa.
Start with any popular format
You can upload documents in PDF, DOC/DOCX, RTF, JPEG, PNG, and TXT formats and start editing them immediately or convert them to other formats.
Store converted documents anywhere
Select the necessary format and download your file to your device or export it to your cloud storage. pdfFiller supports Google Drive, Box, Dropbox, and OneDrive.
Convert documents in batches
Bundle multiple documents into a single package and convert them all in one go—no need to process files individually.
Preview and manage pages
Review the documents you are about to convert and exclude the pages you don’t need. This way, you can compress your files without losing quality.
Protect converted documents
Safeguard your sensitive information while converting documents. Set up a password and lock your document to prevent unauthorized access.
How to quickly convert and compress your PDF?
Upload your document
Upload a document from your device, cloud storage, email, or URL.
Use the converter tool
Select your document and click Convert
.
Select format and destination
Decide on the file type and where you want to save the converted document—on your device or in your cloud storage.
Manage pages and additional settings
Once everything is set, you can access advanced settings to compress a document by excluding unnecessary pages, set passwords, and select other options.
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At first was a bit different in look and function but after a short time became very easy and logical to use. Still wish you could print directly from editing screen.
Hank
2016-03-02
Only thing it is lacking is the OCR - If it would have had this ability to edit scanned pdf document like PDF element - then it would have been the best!
Mazharul I
2018-09-05
Very convenient the only thing I would like is to have different offers for a fax number. I barely use faxes and I would love to use this service. Can you have another fax payment offer?
Melanie S
2019-07-22
Awesome experience. I use this tool to submit financial documents to my Global Headquarters and this makes me look like the professional that I'm not.
Robert A
2019-10-28
I do like the ease of use as this is the first time I have used a PDF application. I have just started using Adobe and unfortunately I think I like that better. Not positive yet.
Nicole
2019-12-02
Easy to use.
I have been using this app for a long time and is really easy to learn how to use and reliable results. Pros. This does everything that Adobe apps should do. It is a great way to reduce paper use.
UI looks a bit sophisticated, but it does what you need. Sometimes the support service takes a long time
Terry W.
2018-04-19
Very helpful for merging and deleting un needed pages in documents! Only issue is loosing the ability for the fillable spaces I created when I upload.
Brittany C
2023-02-02
I am still trying to figure out how this program works. I am doing the basic task. I know there are other things I can do I just don't know yet what I don't know. LOL
Angela T M
2022-10-31
PDF Filler works great it has found every form I've ever queried
PDF Filler works great it has found every form I've ever queried. Even those really hard to find ones from Social Security or Veterans Administration
Beastly Logistics Group
2025-05-02
Convert On Link Certificate Feature
The Convert On Link Certificate feature simplifies the way you manage your digital certificates. It offers a straightforward solution for converting links in your certificates, making your certification process more efficient.
Key Features
Automatic link conversion for digital certificates
User-friendly interface for easy navigation
Secure and fast processing to save time
Compatibility with various platforms and formats
Real-time preview before final conversion
Potential Use Cases and Benefits
Ideal for educational institutions issuing certificates
Useful for training organizations and businesses certifying employees
Helpful for event organizers providing attendance or participation certificates
Supports businesses looking to enhance their digital credentials
Enhances user trust and engagement by providing easily accessible links
This feature addresses your problem of managing and distributing digital certificates swiftly. By automating link conversion, it reduces the time spent on manual tasks. You can focus on what truly matters—delivering value to your audience while boosting your professional image.
Get documents done
from anywhere
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.
Note: The PEM format is the most common format used for certificates. Extensions used for PEM certificates are CER, CRT, and PEM. They are Base64 encoded ASCII files. The HER format is the binary form of the certificate.
How do I know the format of a certificate?
If the certificate is in text format, then it is in PEM format. You can read the contents of a PEM certificate (cert.CRT) using the 'OpenSSL' command on Linux or Windows as follows: OpenSSL x509 -in cert.CRT -text. If the file content is binary, the certificate could be either HER or pkcs12/PFC.
What are the different certificate formats?
There are different formats of X. 509 certificates such as PEM, HER, PCs#7 and PCs#12. PEM and PCs#7 formats use Base64 ASCII encoding while HER and PCs#12 use binary encoding. The certificate files have different extensions based on the format and encoding they use.
What is the most commonly used format for certificates?
PEM Format PEM is the most common format in which Certificate Authorities (CA) issue certificates. These are more widely used by Unix/Linux users. If you see “Prototype” present in a PEM format certificate it means that it is encrypted and these are called as base-64 encoded HER certificates.
What is a CERT file?
cert file is a generic term for X.509 Certificate. In the Windows world, the PFC is password protected and should never leave the org. The CER file can be exported from the X.509 certificate as the public key.
What is x509 certificate format?
In cryptography, X.509 is a standard defining the format of public key certificates. X.509 certificates are used in many Internet protocols, including TLS/SSL, which is the basis for HTTPS, the secure protocol for browsing the web. They are also used in offline applications, like electronic signatures.
How do you convert a certificate to an appropriate format?
Convert x509 to PEM. Openssl x509 -in certificate name. Cer -out form PEM -out certificate name.PEM. Convert PEM to HER. Openssl x509 -out form her -in certificate name.PEM -out certificate name.her. Convert HER to PEM. Convert PKCS7 to PEM. Convert PFC to PCs#8. Convert P7B to PFC.
How do I export a certificate to PEM format?
Select Base-64 encoded X. Provide a location to save the certificate and a file name. Review the settings you selected and click Finish.
