Librivox Draw can edit and create PDFS - see File Cabinet
TOM's guide is a good link for reviewing the various free editors . Each "Free" editor has some limits of course, but if you use multiple "free" editors , depending on how many PDFS you need to create and edit, you might get by without buying any of the applications!
https://www.tomsguide.com/best-picks/best-free-pdf-editors
1. PDF Candy
Best free PDF editor
SPECIFICATIONS
Developer: Icecream AppsCompatibility: Chrome, Firefox, Edge, Opera, SafariCategory: OCR, PDF editing, file conversionUpgrade from free version: None
TODAY'S BEST DEALS
Only one free converted PDF per hour
REASONS TO BUY - yes the free version lets you upload files to their converter but other features do require payment - but $99 gets you the full application forever.
+OCR feature
+Extensive file-conversion and -creation features
+Solid PDF-layout tools
REASONS TO AVOID
-Limited text-editing features
PDF Candy may be one of the more compelling free PDF editors, mostly because it offers an OCR option not available in other free PDF editors.
While you can't edit the OCR'd text directly within PDF Candy's web-based PDF editor, you can upload a PDF file and have PDF Candy extract text and create a text document, RTF file, or Word document in both .doc and .docx formats.
PDF Candy's tool set is formidable. You can use 44 different tools to create or convert PDF files. Additionally, you'll find tools for rearranging pages within a document, adding watermarks, protecting PDF files with passcodes, editing metadata within a PDF file, splitting or adding pages to documents, and extracting images. All these tasks are as simple as selecting the tool, uploading a document and allowing PDF Candy to work its magic.
When you finish one task in a document, you'll get a list of other tools you can use for different tasks. Once your changes are complete, you can download the edited document or upload a new document to work on. PDF Candy keeps all of your documents in a queue so you can download them all at once after you've finished making changes to them.
While the actual text-editing tools in PDF Candy are as limited as with every other free PDF-editing app, everything else PDF Candy has to offer puts it head and shoulders above the other free options.