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Improve Writing

AI
Rewrites for clarity + concision (~20-30% shorter) without changing facts, register, or claims.
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What you'll get: a rewrite for clarity and concision (~20–30% shorter) without changing facts, register, or claims. Edit summary surfaces the kinds of changes made (passive→active, redundant qualifiers cut, etc.). For another use, try AI · Paraphrase.

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Private & secure
AI tools process your PDF in memory, send only the extracted text to the model, and discard everything immediately. No file is persisted on our servers.
No watermarks
Clean output, no branding, no daily limits.
Pay only for what you use
Purchased credits never expire. Cancel anytime.

Why people use Improve Writing

Improve Writing rewrites for clarity and concision — typically 20–30% shorter — without changing facts, register, or claims. The output is the same document, tighter. Useful when the goal is “say this better” rather than “say this differently.”

Polish a draft before sharing
First-draft business writing tends toward verbose. Improve Writing tightens it — same content, ~25% fewer words — before sending to stakeholders. Faster than a manual editing pass and consistent across documents.
Tighten product spec / PRD
Engineering specs often start as brain-dump and need editorial pass before sharing with cross-functional partners. The tightened version preserves every requirement while losing the “basically”s and “in order to”s.
Cut filler from website copy
Marketing copy with filler phrases (“solutions to help you…”, “designed to enable…”) gets tightened to direct claims. Improves both reader experience and SEO (more value per word).
Cover letter / personal statement
Job seekers and applicants tightening their cover letters to fit the “1 page” requirement. Loses the verbose phrasing without losing the substantive evidence.
Email response polish
Long client emails get tightened before sending. The relationship-friendly version preserves warmth while losing the rambling.

How Improve Writing works

Three steps. Sign in to run, zero retention — files never persisted on our servers.

  1. STEP 1
    Drop the doc
    PDF up to 100 MB. Works on prose — emails, business docs, blog posts, articles.
  2. STEP 2
    We tighten section-by-section
    Server-side extraction, then a constrained rewrite that targets clarity and concision: removes filler phrases, tightens redundancy, simplifies passive voice, splits long sentences. Every claim and number preserved verbatim. Routing layer picks the model best at concision-without-loss.
  3. STEP 3
    Get the tighter version
    Markdown output, typically 20–30% shorter than input. Page citations link each tightened passage back to the source for verification.

What makes pdfcraft ai different

  • Citations on every claim
    Every AI summary, answer, and translation links back to the page it came from. You can verify the source before relying on the output. Hallucination is bounded, not blind.
  • Pay only for what you use
    No subscription. Purchased credits never expire. Cancel anytime. Cost shown before you run — exact credit amount appears after upload.
  • Multi-provider routing, no vendor lock-in
    We balance multiple AI providers per call to optimise cost and quality. If one has an outage, the next call automatically tries another. You're not bound to a single vendor's pricing or downtime.
  • Zero retention by design
    Your PDF lives in memory only as long as the AI call needs it, then it's discarded — nothing is persisted to our servers. We don't fine-tune models on your data. Verifiable in your dashboard's audit log.
  • Honest about model limits
    When a doc exceeds the model's context window we surface that the output was truncated (we render result.wasTruncated in every AI tool's UI). When a number can't be verified from the source we flag it. No silent failures.

Frequently asked questions

How is this different from AI Paraphrase or AI Condense?
Paraphrase varies word choice but preserves length. Condense is aggressive shortening (50%+ length reduction) at the cost of detail. Improve Writing is the middle ground: ~25% shorter while keeping every substantive point. Pick based on whether you need style change, aggressive cut, or polish.
Will it preserve my voice?
Yes — register and tone are explicitly preserved. The output should sound like the original author, just tighter. If the output feels off-voice, the input was probably already concise — not every doc benefits from tightening.
What if it cuts something important?
Page citations make spot-checking easy — click any tightened passage, see what was in the source. For high-stakes content (legal, regulatory, technical specs), read the output before publishing. The tool errs toward preservation but isn’t infallible.
Does it preserve structure (headings, lists)?
Yes. Headings + list structure preserved verbatim. Tightening happens within sections / list items, not on the structural skeleton.
What’s the credit cost?
3 credits per doc. Cost is fixed regardless of doc size.
What if the original is already tight?
Output may be similar length to input — the model won’t cut for the sake of cutting. If your input is well-edited, this tool is the wrong fit; you’re past the point of diminishing returns. Run AI Proofread instead for grammar / typo check.

Want to know what to fix first?

Readability Score reports the doc’s grade level + flags complex sentences and jargon. Useful as a pre-Improve Writing audit to know whether the issue is verbosity (Improve Writing fixes) or jargon (AI Rewrite with the “simple” register fixes).

Try Readability Score

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