Free Online PDF Tools: Merge, Split, Edit & Sign PDFs
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Need to merge PDFs, remove a page, add a signature or turn images into a document? SoftwareKeep Digital PDF Studio brings 12 everyday PDF tools together in a browser-based workspace. All currently available tools are free during launch, and SoftwareKeep does not add a brand watermark to your exported documents.
You can also use AI Assist to prepare document text and a prompt for your own ChatGPT or Gemini account. You review the text, copy it and paste it into the AI service yourself. No AI API key or payment through PDF Studio is required for that workflow.
Free online PDF tools: a quick overview
PDF Studio is designed for practical document tasks: assembling files, preparing paperwork, adding notes and creating shareable copies. Choose a tool, open your files, make your changes and download the result.
| Tool | What you can do |
|---|---|
| Merge PDF | Combine pages from multiple PDFs into one document. |
| Extract pages | Save selected pages as a separate PDF. |
| Organize PDF | Reorder, rotate and delete pages. |
| Edit and annotate | Add new text, images, highlights and freehand drawings. |
| Sign PDF | Place a typed or hand-drawn visual signature. |
| Images to PDF | Turn JPG and PNG images into PDF pages. |
| PDF to JPG | Download rendered page images in a ZIP archive. |
| PDF to text | Extract existing selectable text into a text file. |
| Watermark PDF | Add your own text watermark with color and opacity controls. |
| Page numbers | Add numbering with your chosen starting number. |
| Crop PDF | Trim the visible margins around pages. |
| Edit metadata | Set the PDF title, author and subject. |
The workspace supports files up to 50 MB each and a total of 200 pages. Browser memory and device performance can affect how comfortably larger documents run. Use a small sample first when working with a complex file.
How to merge PDF files for free
Combining documents is useful when you need one file for an application, project handover, set of receipts or business report.
- Open Merge PDF.
- Choose your PDF files or drag them into the upload area.
- Arrange the page cards in the order you want. Use Add files if you need another document.
- Check the page order and choose a download name.
- Select Download PDF to save the combined document.
Keep your original files as a reference. The downloaded PDF is a new copy; opening a document in the workspace does not overwrite the source file on your device.
How to split a PDF or extract selected pages
Sometimes you only need a few pages from a longer document. Instead of sharing the whole file, use Extract pages to create a smaller PDF containing the pages you select.
- Open your PDF and choose Extract pages.
- Select individual page checkboxes, or enter a range such as 1–3, 5.
- Review the selection.
- Download the new PDF.
To remove pages while keeping the rest of the document, choose Organize PDF, select the unwanted pages and use Delete pages. Undo and redo help you correct changes before exporting.
Add text, highlights, images and signatures to PDFs
The PDF annotation tools let you add a note, place an image or logo, highlight an area or draw on a page. Choose a mark type, then click or drag on the page preview. Larger previews make placement easier.
For a signature, open Sign PDF, type your name or draw in the signature pad, then click the page to place it. Review the exported document before sharing it.
Know the difference: this version adds new content over a PDF. It does not replace existing PDF text, automatically fill interactive forms or create a certified digital signature. A typed or drawn signature is a visual mark; it does not verify the signer’s identity. Text annotations currently support basic Latin characters.
Convert JPG and PNG images to PDF, or PDF pages to JPG
Use JPG and PNG to PDF to collect images into a document. Each image becomes a page, and you can change the order before downloading. This is useful for organizing photos of paperwork or a sequence of reference images.
To use a PDF page as an image, choose PDF to JPG. Select particular pages or export the whole document. The result is a ZIP archive of JPG page images.
If you need the words rather than an image, PDF to text extracts text already embedded in the document. A scanned page may look like text to a person while containing only an image, so text extraction will not work without OCR.
Use AI Assist with your own ChatGPT or Gemini account
AI Assist helps you prepare a useful prompt without automatically sending your document to an AI provider. Choose from four tasks:
- Summarize: prepare a prompt asking for an overview and main points.
- Key points and action items: ask your AI service to identify decisions, deadlines and next steps.
- Questions: enter what you want to understand about the document.
- Translation: specify the language for the extracted text.
- Open a PDF in the workspace. Select pages if you want a narrower source.
- Choose a task in AI Assist and select Prepare AI prompt.
- Read and edit the prepared document text.
- Copy the prompt and open ChatGPT or Gemini using the provided buttons.
- Paste the text into your own account and review the response there.
PDF Studio does not generate the AI answer inside the app. Your chosen provider’s account requirements, limits, privacy practices and terms apply. An AI response can be mistaken, so compare important statements with the original document. Extracted text may lose table layout or formatting.
Prepared document text is limited to 100,000 characters, with a notice if it is truncated. Select fewer pages when you need complete coverage of a specific section.
Are your PDFs uploaded?
The current PDF tools process the files you choose locally in your browser. The app does not upload document contents to a PDF-processing server. AI Assist also extracts text locally and leaves you in control of copying it into another service.
Once you paste content into ChatGPT or Gemini, that service handles the submitted text according to its own settings and policies. Review sensitive information before sharing it. Closing the tab discards the active workspace; keep any downloads you want to retain.
What this free version does not include
This release focuses on everyday PDF organization, conversion and annotation. It does not currently include OCR, PDF-to-Word or PDF-to-Excel conversion, replacement of existing text, secure redaction, password protection or a dedicated compression tool. Cropping hides margins but does not securely remove content. No downloadable desktop installer is included.
All currently available tools are free during launch. There is no paid subscription or checkout in this version. Future plans, if introduced, will be described separately.
Frequently asked questions
Is SoftwareKeep Digital PDF Studio free?
Yes. All currently available PDF tools are free during launch, within the stated file and page limits. No payment is required to use them.
Does it add a watermark to my PDF?
SoftwareKeep does not automatically add a brand watermark. The Watermark PDF tool lets you add your own text watermark when you choose to.
Can I merge and split PDFs without installing software?
Yes. Open PDF Studio in your browser, choose your files and use Merge PDF or Extract pages. Download the finished document when you are ready.
Can I summarize a PDF with ChatGPT or Gemini?
AI Assist prepares selectable PDF text and a summary prompt. Copy it into your own ChatGPT or Gemini account to obtain the answer there. Nothing is sent automatically.
Does AI Assist require an API key?
No. The copy-and-open workflow uses your existing AI chat account rather than an API integration. The AI provider’s own usage limits still apply.
Can it read scanned documents?
Not through text extraction alone. Image-only scans need OCR, which is not included in this release.
Start with the PDF task you need today
Bring together a report, extract the pages you need, annotate a document or turn images into a PDF. Start with one task, check the result and keep your original document.