> ## Knowledge Base Index > Fetch the complete knowledge base index at: https://support.contracthero.com/sitemap.xml > Use this file to discover available pages before exploring further. > Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash). # How do I swap out a wrong document on a contract? You create a contract and only afterwards notice the wrong file is attached — pages scanned twice, an outdated version, simply the wrong PDF. The worry is nearly always the same: does this mean redoing everything, including the fields you carefully verified? It doesn't. In almost every case your data stays exactly where it is. *The screenshots in this article show the German interface. The English label is given first, with the German label in square brackets.* ## What's in it for you In ContractHero, fields, tasks and links belong to the **contract**, not to the individual file. A document is the evidence, not the record. Fixing the wrong file therefore costs you a single upload rather than rebuilding a contract you have already filled in and verified. On large contracts that matters: nobody wants to re-verify thirty fields because of a scanning error. ## How it works **1. Open the contract** Open the contract from **Contracts [Verträge]** in the left-hand navigation. ![](https://storage.crisp.chat/users/helpdesk/website/-/1/2/5/2/12522a019f980500/vertragsubersicht_1vfsqiy.png) ![](https://storage.crisp.chat/users/helpdesk/website/-/1/2/5/2/12522a019f980500/vertrag-offnen_lgfgz2.png) **2. Go to the Documents tab** In the right-hand column, go to the **Documents [Dokumente]** tab. It is selected by default when you open a contract. Click **All documents [Alle Dokumente]** above the preview to see every file attached to this contract. ![](https://storage.crisp.chat/users/helpdesk/website/-/1/2/5/2/12522a019f980500/dokumentenbereich-offnen_1yq28wj.png) **3. Add the corrected file** Click the **plus icon** to the right of the list. ![](https://storage.crisp.chat/users/helpdesk/website/-/1/2/5/2/12522a019f980500/dokument-hinzufugen_1xcehfb.png) **4. Pick the file** Drag and drop the file into the upload window, or pick it via the file browser. ![](https://storage.crisp.chat/users/helpdesk/website/-/1/2/5/2/12522a019f980500/upload-fenster_1r8t9c5.png) ![](https://storage.crisp.chat/users/helpdesk/website/-/1/2/5/2/12522a019f980500/hier-document-reinziehen_19vpuly.png) **5. Confirm with Import** The new file is attached immediately — your fields, tasks and links are untouched. ![](https://storage.crisp.chat/users/helpdesk/website/-/1/2/5/2/12522a019f980500/hinzugefugtes-dokument_2jab8g.png) **6. Mark the old file** So colleagues can tell which file is authoritative, we recommend one final step: open the old document, click the **three-dot menu** next to the file name and choose **Rename [Umbenennen]**. Mark it as `OUTDATED – do not use`, for example. You can also delete the old file via **Remove [Entfernen]** in the same menu. Be careful: that step is permanent (see "Good to know"). ## Common questions ### Can I overwrite a document directly? No. There is no replace or overwrite function. The document's three-dot menu offers **Rename**, **Print**, **Download** and **Remove** — so the route is always "add the new file". ### Do I have to verify my fields again afterwards? No. Verification status belongs to the contract, not the file. You can see it at the top of the contract as a counter, for example **1 / 1 verified**. Adding another file does not reset it. ### Will the new file update my fields automatically? No, by design. AI analysis only fills **empty** fields and never touches values that are already filled in. So if the wrong file already wrote wrong values into your fields, correct those fields manually or via bulk edit. ### What if the entire contract record is wrong? Then delete the contract and create it again. Deleted **contracts** go to the **trash** and can be restored there for 30 days by default. The retention period is configurable in your settings. ## Good to know * **Removed documents are gone for good.** The trash holds deleted contracts only, not individual documents. When you delete a document, ContractHero explicitly warns that the file is removed permanently. Download it first if you are unsure. * **Add first, tidy up second.** Always add and check the corrected file before removing the old one. * **AI only reads PDFs.** You can store Word, Excel or image files on a contract, but they are not extracted automatically — regardless of whether they are attached as a document or an attachment. * **You need write access.** Read-only permissions allow neither adding nor removing files. * **Everything is logged.** Adding and deleting documents appear with user and timestamp in the **Activity** tab — useful when an audit asks why a file was swapped. ## Related articles * [How do I add documents to an existing contract?](https://support.contracthero.com/en-us/article/how-do-i-add-documents-to-an-existing-contract-1h3nl9n/) — the full upload route * [How do I link attachments to a contract?](https://support.contracthero.com/en-us/article/how-do-i-link-attachments-to-a-contract-18km8im/) — when the attachment needs its own contract data * [AI Retrigger: Re-analyze contracts and fill in missing fields](https://support.contracthero.com/en-us/article/ai-retrigger-re-analyze-contracts-and-fill-in-missing-fields-1jjc7t6/) — fill empty fields after the swap * [Mass editing contract information (bulk edit)](https://support.contracthero.com/en-us/article/mass-editing-contract-information-bulk-edit-c8zpov/) — correct wrongly filled fields * [How can I edit Contracts?](https://support.contracthero.com/en-us/article/how-can-i-edit-contracts-pzlqcp/) — editing fields on a contract * [What information is available in the Change Log?](https://support.contracthero.com/en-us/article/what-information-is-available-in-the-change-log-1mdj620/) — trace who swapped what