Merging, splitting, compressing, converting and signing documents without a PDF subscription. 7 jobs, each with the vendors' dated entry prices, their free-tier limits and the free page that does the job.
Merging several PDFs into one document
Adobe Acrobat free tier: One free transaction signed out; one premium transaction per rolling 30 days signed in.
Summarizing a long PDF
QuillBot Premium free tier: Free Summarizer up to 1,200 words; free Paraphraser up to 125 words and 2 modes.
Building a resume and downloading it as a PDF
Zety free tier: Free Basic plan downloads TXT only; PDF and Word are paid.
Making a clean image of your signature for a form or document
DocuSign eSignature free tier: No free plan listed; annual plans bought online have a 30-day refund.
Making a PDF file smaller
Adobe Acrobat free tier: One free transaction signed out; one premium transaction per rolling 30 days signed in.
Splitting a PDF into separate files or extracting pages
Sejda free tier: 3 tasks per hour, 1 file per task, no signup; page and size caps vary by tool.
Pulling text out of an image with OCR
ABBYY FineReader PDF free tier: No free tier; a 7-day trial with no payment required.