Switch from Sejda to pdfFiller for a Merge PDF Files Solution For Free

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Last updated on Jan 16, 2026

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Edit PDF
Quickly edit and annotate PDFs online.
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eSign documents from anywhere.
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Send a document for eSignature.
Share
Instantly send PDFs for review and editing.
Merge
Combine multiple PDFs into one.
Rearrange
Rearrange pages in a PDF document.
Compress
Compress PDFs to reduce their size.
Convert
Convert PDFs into Word, Excel, JPG, or PPT files and vice versa.

Discover the simplicity of processing PDFs online

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Switch from Sejda to pdfFiller in 4 simple steps

1
Sign up for free using your email, Google, or Facebook account.
2
Upload a PDF from your device or cloud storage, check the online library for the form you need, or create a document from scratch.
3
Edit, annotate, redact, or eSign your PDF online in seconds.
4
Share your document, download it in your preferred format, or save it as a template.

Experience effortless PDF management with the best alternative to Sejda

Create and edit PDFs

Create and edit PDFs

Instantly customize your PDFs any way you want, or start fresh with a new document.
Fill out PDF forms

Fill out PDF forms

Stop spending hours doing forms by hand. Complete your tax reporting and other paperwork fast and error-free.
Build fillable documents

Build fillable documents

Add fillable fields to your PDFs and share your forms with ease to collect accurate data.
Save reusable templates

Save reusable templates

Reclaim working hours by generating new documents with reusable pre-made templates.
Get eSignatures done

Get eSignatures done

Forget about printing and mailing documents for signature. Sign your PDFs or request signatures in a few clicks.
Convert files

Convert files

Say goodbye to unreliable third-party file converters. Save your files in various formats right in pdfFiller.
Securely store documents

Securely store documents

Keep all your documents in one place without exposing your sensitive data.
Organize your PDFs

Organize your PDFs

Merge, split, and rearrange the pages of your PDFs in any order.

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How to Merge PDF Files

Most of us understand that when we complete a form, it should often be submitted along with supporting papers. In most cases, such papers prove someone’s identity or right to work. Also, the user may need to attach other additional forms. That is why PDF merger has become one of the most useful features, helping document workflows become more paperless. pdfFiller developed this solution for you to merge PDF in several simple steps. The fast process of combining numerous electronic templates into one will increase your productivity.

Everyone will have the opportunity to digitally merge PDF files and share them with this useful tool. The solution runs independently and any customer can use it to manage multiple PDF files with his or her internet-connected device. No additional software is required. All tools are available on any laptop and look good on both Windows or Mac platforms and any mobile phone. Customers can now save more time when processing docs on the go.

Merge PDF Online in a Few Clicks With pdfFiller’s Tool

Create a new document from existing samples and rearrange PDF pages following the steps below:

Upload all necessary PDF documents to your personal account and arrange them in the same folder, so you won’t have to search for every sample while merging.

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Select templates by putting a checkmark in front of each one you need. Remember that the minimal number is two PDFs and maximum is five. If you select more, a warning notification will appear.

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Click “More” in the upper row of features and select “Merge”.

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Next, a pop-up preview window will appear. Place the pages in the proper order and submit the changes. In several seconds you will see your new document. The form is saved in the same folder as the forms it contains. All previous versions are untouched and remain in the same folder. Download the sample to your personal computer or send it as a signature request. Additionally, the user may share it with any person providing the link. In order to protect personal data, a number of security measures can be added. Lock the document with a password or include a verification check by phone number, photo or social network account. This will provide safe access to the template only for the individual you trust.

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To learn more about PDF merger, please watch the following video: pdfFiller provides you with numerous unique features that help to save time for more important business. Customers can split their samples, share several docs at once and add tags to easily find needed files. Try every tool and find the one that helps you best.

pdfFiller is different from and not affiliated with Sea. With further questions about Sea products please contact Sea directly.

Our user reviews speak for themselves

Read more or give pdfFiller a try to experience the benefits for yourself
5.0
Great experience for me since I'm preparing from a remote location in the mountains using the e-signature feature sending to legal services for filing.
Diana S
5.0
Very professional and good customer support I forgot to cancel the auto renewed subscription after my free trial and they got back to me within a day and were also very responsive. I got refunded immediately even though it was my fault for not cancelling.
DJ
5.0
This is the best PDF program Ive used This is the best PDF program Ive used. Ive long wanted something to compete with Adobe and this is it. I love the ease of using all features, especially the editing/adding text option. This program is top tier! As a healthcare provider who has to often complete forms for patients, this program exceeds my expectations.
DR. APJ
4.0
I think it is good however I already… I think it is good however I already see methods to improve it. I desire to fax a smart folder of documents I already created. This would be a facilitate faster communication of information as opposed to finding out how to merge the documents and then fax the complete file. All in all, I like the platform. If you may obtain DocuSign options, it would be nice long term perhaps. Many corporations and companies like to use DocuSign.
Daniel Mederich
5.0
I received pdf's from an online class that the asked me to print out, complete, scan back. I just did not want to print mostly but the entire process ... you know. pdfFiller helped out a lot, especially with the symbols (might want to add music notes).
Sage
5.0
easy to use and there are a lot of options to have things mailed, emailed, faxed, etc right with a click of a button and entering information. It does have a fee for this BUT it is SUPER convenient so honestly its a very small price to pay to not have to worry about all the extra work i would have to do myself.
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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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If you have multiple scanned documents that you would like to combine, you can do so by first ensuring that they are PDF documents. If they are JPEG or PNG files, convert them to PDF by opening them in Preview and then using the Export feature in the File menu to save them in the PDF format.
Choose Tools > Create PDF > Scanner > [document preset]. Note: Click Scan. If prompted to scan more pages, select Scan More Pages, Scan Reverse Sides, or Scan Is Complete, and click OK.
Drag and drop your PDFs into the PDF combiner. Rearrange individual pages or entire files in the desired order. Add more files, rotate or delete files, if needed. Click 'Merge PDF!' to combine and download your PDF.
How to merge two PDF files on a PC Open the Acrobat Online tool. Drag and drop your files, or click the Select files button and locate your files via the dialog box. Once your files upload, select Merge.
Step 1: Go to the SmallPDF website and click on the "Merge PDF" button. Step 2: Click on the "Choose Files" button and select the files you wish to combine. You can also rearrange the files by dragging and dropping them into the desired order. Step 3: After uploading the files, select the "Merge Files" option.
How to edit PDF files Open a file in the Online PDF editor. Click on the Text tool in the top menu. Add text on the PDF page. Add images to the page. Fill out PDF forms and add signatures. Annotate PDF pages, highlight text and mark changes with strikethrough. Add new links to web URLs or pages in the document.
In the “Pages per sheet” dropdown, choose how many pages you want to combine onto a single sheet. For example, if you choose '2,' two pages of your PDF will be combined side by side on a single page.
How to combine PDF files Click the Select a file button above, or drag and drop files into the drop zone. Select the files you want to merge using the Acrobat PDF combiner tool. Reorder the files if needed. Click Merge files. Sign in to download or share the merged file. You can organise the pages too.
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